chore: code clean-up
diff --git a/erpnext/healthcare/page/patient_history/patient_history.js b/erpnext/healthcare/page/patient_history/patient_history.js
index 3e6d790..5f1851f 100644
--- a/erpnext/healthcare/page/patient_history/patient_history.js
+++ b/erpnext/healthcare/page/patient_history/patient_history.js
@@ -1,30 +1,31 @@
-frappe.provide("frappe.patient_history");
+frappe.provide('frappe.patient_history');
 frappe.pages['patient_history'].on_page_load = function(wrapper) {
-	var me = this;
-	var page = frappe.ui.make_app_page({
+	let me = this;
+	let page = frappe.ui.make_app_page({
 		parent: wrapper,
 		title: 'Patient History',
 		single_column: true
 	});
 
-	frappe.breadcrumbs.add("Healthcare");
+	frappe.breadcrumbs.add('Healthcare');
 	let pid = '';
-	page.main.html(frappe.render_template("patient_history", {}));
-	var patient = frappe.ui.form.make_control({
-		parent: page.main.find(".patient"),
+	page.main.html(frappe.render_template('patient_history', {}));
+
+	let patient = frappe.ui.form.make_control({
+		parent: page.main.find('.patient'),
 		df: {
-			fieldtype: "Link",
-			options: "Patient",
-			fieldname: "patient",
+			fieldtype: 'Link',
+			options: 'Patient',
+			fieldname: 'patient',
 			placeholder: __('Select Patient'),
 			only_select: true,
 			change: function(){
-				if(pid != patient.get_value() && patient.get_value()){
+				if (pid != patient.get_value() && patient.get_value()) {
 					me.start = 0;
-					me.page.main.find(".patient_documents_list").html("");
+					me.page.main.find('.patient_documents_list').html('');
 					get_documents(patient.get_value(), me);
 					show_patient_info(patient.get_value(), me);
-					show_patient_vital_charts(patient.get_value(), me, "bp", "mmHg", "Blood Pressure");
+					show_patient_vital_charts(patient.get_value(), me, 'bp', 'mmHg', 'Blood Pressure');
 				}
 				pid = patient.get_value();
 			}
@@ -32,112 +33,130 @@
 	});
 	patient.refresh();
 
-	if (frappe.route_options){
+	if (frappe.route_options) {
 		patient.set_value(frappe.route_options.patient);
 	}
 
-	this.page.main.on("click", ".btn-show-chart", function() {
-		var	btn_show_id = $(this).attr("data-show-chart-id"), pts = $(this).attr("data-pts");
-		var title = $(this).attr("data-title");
+	this.page.main.on('click', '.btn-show-chart', function() {
+		let	btn_show_id = $(this).attr('data-show-chart-id'), pts = $(this).attr('data-pts');
+		let title = $(this).attr('data-title');
 		show_patient_vital_charts(patient.get_value(), me, btn_show_id, pts, title);
 	});
 
-	this.page.main.on("click", ".btn-more", function() {
-		var	doctype = $(this).attr("data-doctype"), docname = $(this).attr("data-docname");
-		if(me.page.main.find("."+docname).parent().find('.document-html').attr('data-fetched') == "1"){
-			me.page.main.find("."+docname).hide();
-			me.page.main.find("."+docname).parent().find('.document-html').show();
-		}else{
-			if(doctype && docname){
-				let exclude = ["patient", "patient_name", 'patient_sex', "encounter_date"];
+	this.page.main.on('click', '.btn-more', function() {
+		let	doctype = $(this).attr('data-doctype'), docname = $(this).attr('data-docname');
+		if (me.page.main.find('.'+docname).parent().find('.document-html').attr('data-fetched') == '1') {
+			me.page.main.find('.'+docname).hide();
+			me.page.main.find('.'+docname).parent().find('.document-html').show();
+		} else {
+			if (doctype && docname) {
+				let exclude = ['patient', 'patient_name', 'patient_sex', 'encounter_date'];
 				frappe.call({
-					method: "erpnext.healthcare.utils.render_doc_as_html",
+					method: 'erpnext.healthcare.utils.render_doc_as_html',
 					args:{
 						doctype: doctype,
 						docname: docname,
 						exclude_fields: exclude
 					},
+					freeze: true,
 					callback: function(r) {
-						if (r.message){
-							me.page.main.find("."+docname).hide();
-							me.page.main.find("."+docname).parent().find('.document-html').html(r.message.html+"\
-							<div align='center'><a class='btn octicon octicon-chevron-up btn-default btn-xs\
-							btn-less' data-doctype='"+doctype+"' data-docname='"+docname+"'></a></div>");
-							me.page.main.find("."+docname).parent().find('.document-html').show();
-							me.page.main.find("."+docname).parent().find('.document-html').attr('data-fetched', "1");
+						if (r.message) {
+							me.page.main.find('.' + docname).hide();
+
+							me.page.main.find('.' + docname).parent().find('.document-html').html(
+								`${r.message.html}
+									<div align='center'>
+										<a class='btn octicon octicon-chevron-up btn-default btn-xs btn-less'
+											data-doctype='${doctype}'
+											data-docname='${docname}'>
+										</a>
+									</div>
+								`);
+
+							me.page.main.find('.' + docname).parent().find('.document-html').show();
+							me.page.main.find('.' + docname).parent().find('.document-html').attr('data-fetched', '1');
 						}
-					},
-					freeze: true
+					}
 				});
 			}
 		}
 	});
 
-	this.page.main.on("click", ".btn-less", function() {
-		var docname = $(this).attr("data-docname");
-		me.page.main.find("."+docname).parent().find('.document-id').show();
-		me.page.main.find("."+docname).parent().find('.document-html').hide();
+	this.page.main.on('click', '.btn-less', function() {
+		let docname = $(this).attr('data-docname');
+		me.page.main.find('.' + docname).parent().find('.document-id').show();
+		me.page.main.find('.' + docname).parent().find('.document-html').hide();
 	});
 	me.start = 0;
-	me.page.main.on("click", ".btn-get-records", function(){
+	me.page.main.on('click', '.btn-get-records', function(){
 		get_documents(patient.get_value(), me);
 	});
 };
 
-var get_documents = function(patient, me){
+let get_documents = function(patient, me) {
 	frappe.call({
-		"method": "erpnext.healthcare.page.patient_history.patient_history.get_feed",
+		'method': 'erpnext.healthcare.page.patient_history.patient_history.get_feed',
 		args: {
 			name: patient,
 			start: me.start,
 			page_length: 20
 		},
-		callback: function (r) {
-			var data = r.message;
-			if(data.length){
+		callback: function(r) {
+			let data = r.message;
+			if (data.length) {
 				add_to_records(me, data);
-			}else{
-				me.page.main.find(".patient_documents_list").append("<div class='text-muted' align='center'><br><br>No more records..<br><br></div>");
-				me.page.main.find(".btn-get-records").hide();
+			} else {
+				me.page.main.find('.patient_documents_list').append(`
+					<div class='text-muted' align='center'>
+						<br><br>${__('No more records..')}<br><br>
+					</div>`);
+				me.page.main.find('.btn-get-records').hide();
 			}
 		}
 	});
 };
 
-var add_to_records = function(me, data){
-	var details = "<ul class='nav nav-pills nav-stacked'>";
-	var i;
-	for(i=0; i<data.length; i++){
-		if(data[i].reference_doctype){
+let add_to_records = function(me, data) {
+	let details = "<ul class='nav nav-pills nav-stacked'>";
+	let i;
+	for(i=0; i<data.length; i++) {
+		if (data[i].reference_doctype) {
 			let label = '';
-			if(data[i].subject){
-				label += "<br/>"+data[i].subject;
+			if (data[i].subject) {
+				label += "<br/>" + data[i].subject;
 			}
 			data[i] = add_date_separator(data[i]);
-			if(frappe.user_info(data[i].owner).image){
+
+			if (frappe.user_info(data[i].owner).image) {
 				data[i].imgsrc = frappe.utils.get_file_link(frappe.user_info(data[i].owner).image);
-			}
-			else{
+			} else {
 				data[i].imgsrc = false;
 			}
-			var time_line_heading = data[i].practitioner ? `${data[i].practitioner} ` : ``;
+
+			let time_line_heading = data[i].practitioner ? `${data[i].practitioner} ` : ``;
 			time_line_heading += data[i].reference_doctype + " - " +
 				`<a onclick="frappe.set_route('Form', '${data[i].reference_doctype}', '${data[i].reference_name}');">
 					${data[i].reference_name}
 				</a>`
 
-			details += `<li data-toggle='pill' class='patient_doc_menu'
-			data-doctype='${data[i].reference_doctype}' data-docname='${data[i].reference_name}'>
-			<div class='col-sm-12 d-flex border-bottom py-3'>`;
-			if (data[i].imgsrc){
-				details += `<span class='mr-3'>
-					<img class='avtar' src='${data[i].imgsrc}' width='32' height='32'>
-					</img>
-			</span>`;
-			}else{
-				details += `<span class='mr-3 avatar avatar-small' style='width:32px; height:32px;'><div align='center' class='standard-image'
-					style='background-color: #fafbfc;'>${data[i].practitioner ? data[i].practitioner.charAt(0) : "U"}</div></span>`;
+			details += `
+				<li data-toggle='pill' class='patient_doc_menu'
+					data-doctype='${data[i].reference_doctype}' data-docname='${data[i].reference_name}'>
+					<div class='col-sm-12 d-flex border-bottom py-3'>`;
+
+			if (data[i].imgsrc) {
+				details += `
+					<span class='mr-3'>
+						<img class='avtar' src='${data[i].imgsrc}' width='32' height='32'></img>
+					</span>`;
+			} else {
+				details += `<span class='mr-3 avatar avatar-small' style='width:32px; height:32px;'>
+					<div align='center' class='standard-image' style='background-color: #fafbfc;'>
+						${data[i].practitioner ? data[i].practitioner.charAt(0) : 'U'}
+					</div>
+				</span>`;
 			}
+
 			details += `<div class='d-flex flex-column width-full'>
 					<div>
 						`+time_line_heading+`
@@ -161,24 +180,30 @@
 			</li>`;
 		}
 	}
-	details += "</ul>";
-	me.page.main.find(".patient_documents_list").append(details);
+
+	details += '</ul>';
+	me.page.main.find('.patient_documents_list').append(details);
 	me.start += data.length;
-	if(data.length===20){
+
+	if (data.length === 20) {
 		me.page.main.find(".btn-get-records").show();
-	}else{
+	} else {
 		me.page.main.find(".btn-get-records").hide();
-		me.page.main.find(".patient_documents_list").append("<div class='text-muted' align='center'><br><br>No more records..<br><br></div>");
+		me.page.main.find(".patient_documents_list").append(`
+			<div class='text-muted' align='center'>
+				<br><br>${__('No more records..')}<br><br>
+			</div>`);
 	}
 };
 
-var add_date_separator = function(data) {
-	var date = frappe.datetime.str_to_obj(data.creation);
+let add_date_separator = function(data) {
+	let date = frappe.datetime.str_to_obj(data.creation);
+	let pdate = '';
+	let diff = frappe.datetime.get_day_diff(frappe.datetime.get_today(), frappe.datetime.obj_to_str(date));
 
-	var diff = frappe.datetime.get_day_diff(frappe.datetime.get_today(), frappe.datetime.obj_to_str(date));
-	if(diff < 1) {
-		var pdate = __('Today');
-	} else if(diff < 2) {
+	if (diff < 1) {
+		pdate = __('Today');
+	} else if (diff < 2) {
 		pdate = __('Yesterday');
 	} else {
 		pdate = __('on ') + frappe.datetime.global_date_format(date);
@@ -187,107 +212,118 @@
 	return data;
 };
 
-var show_patient_info = function(patient, me){
+let show_patient_info = function(patient, me) {
 	frappe.call({
-		"method": "erpnext.healthcare.doctype.patient.patient.get_patient_detail",
+		'method': 'erpnext.healthcare.doctype.patient.patient.get_patient_detail',
 		args: {
 			patient: patient
 		},
-		callback: function (r) {
-			var data = r.message;
-			var details = "";
-			if(data.image){
-				details += "<div><img class='thumbnail' width=75% src='"+data.image+"'></div>";
+		callback: function(r) {
+			let data = r.message;
+			let details = '';
+			if (data.image){
+				details += `<div><img class='thumbnail' width=75% src='${data.image}'></div>`;
 			}
-			details += "<b>" + data.patient_name +"</b><br>" + data.sex;
-			if(data.email) details += "<br>" + data.email;
-			if(data.mobile) details += "<br>" + data.mobile;
-			if(data.occupation) details += "<br><br><b>Occupation :</b> " + data.occupation;
-			if(data.blood_group) details += "<br><b>Blood group : </b> " + data.blood_group;
-			if(data.allergies) details +=  "<br><br><b>Allergies : </b> "+  data.allergies.replace("\n", "<br>");
-			if(data.medication) details +=  "<br><b>Medication : </b> "+  data.medication.replace("\n", "<br>");
-			if(data.alcohol_current_use) details +=  "<br><br><b>Alcohol use : </b> "+  data.alcohol_current_use;
-			if(data.alcohol_past_use) details +=  "<br><b>Alcohol past use : </b> "+  data.alcohol_past_use;
-			if(data.tobacco_current_use) details +=  "<br><b>Tobacco use : </b> "+  data.tobacco_current_use;
-			if(data.tobacco_past_use) details +=  "<br><b>Tobacco past use : </b> "+  data.tobacco_past_use;
-			if(data.medical_history) details +=  "<br><br><b>Medical history : </b> "+  data.medical_history.replace("\n", "<br>");
-			if(data.surgical_history) details +=  "<br><b>Surgical history : </b> "+  data.surgical_history.replace("\n", "<br>");
-			if(data.surrounding_factors) details +=  "<br><br><b>Occupational hazards : </b> "+  data.surrounding_factors.replace("\n", "<br>");
-			if(data.other_risk_factors) details += "<br><b>Other risk factors : </b> " + data.other_risk_factors.replace("\n", "<br>");
-			if(data.patient_details) details += "<br><br><b>More info : </b> " + data.patient_details.replace("\n", "<br>");
 
-			if(details){
-				details = "<div style='padding-left:10px; font-size:13px;' align='center'>" + details + "</div>";
+			details += `<b> ${data.patient_name} </b><br> ${data.sex}`;
+			if (data.email) details += `<br> ${data.email}`
+			if (data.mobile) details += `<br> ${data.mobile}`;
+			if (data.occupation) details += `<br><br><b> ${__('Occupation')} : </b> ${data.occupation}`;
+			if (data.blood_group) details += `<br><b> ${__('Blood Group')} : </b> ${data.blood_group}`;
+			if (data.allergies) details +=  `<br><br><b> ${__('Allerigies')} : </b> ${data.allergies.replace("\n", ", ")}`;
+			if (data.medication) details +=  `<br><b> ${__('Medication')} : </b> ${data.medication.replace("\n", ", ")}`;
+			if (data.alcohol_current_use) details +=  `<br><br><b> ${__('Alcohol use')} : </b> ${data.alcohol_current_use}`;
+			if (data.alcohol_past_use) details +=  `<br><b> ${__('Alcohol past use')} : </b> ${data.alcohol_past_use}`;
+			if (data.tobacco_current_use) details +=  `<br><b> ${__('Tobacco use')} : </b> ${data.tobacco_current_use}`;
+			if (data.tobacco_past_use) details +=  `<br><b> ${__('Tobacco past use')} : </b> ${data.tobacco_past_use}`;
+			if (data.medical_history) details +=  `<br><br><b> ${__('Medical history')} : </b> ${data.medical_history.replace("\n", ", ")}`;
+			if (data.surgical_history) details +=  `<br><b> ${__('Surgical history')} : </b> ${data.surgical_history.replace("\n", ", ")}`;
+			if (data.surrounding_factors) details +=  `<br><br><b> ${__('Occupational hazards')} : </b> ${data.surrounding_factors.replace("\n", ", ")}`;
+			if (data.other_risk_factors) details += `<br><b> ${__('Other risk factors')} : </b> ${data.other_risk_factors.replace("\n", ", ")}`;
+			if (data.patient_details) details += `<br><br><b> ${__('More info')} : </b> ${data.patient_details.replace("\n", ", ")}`;
+
+			if (details){
+				details = `<div style='padding-left:10px; font-size:13px;' align='left'>` + details + `</div>`;
 			}
-			me.page.main.find(".patient_details").html(details);
+			me.page.main.find('.patient_details').html(details);
 		}
 	});
 };
 
-var show_patient_vital_charts = function(patient, me, btn_show_id, pts, title) {
+let show_patient_vital_charts = function(patient, me, btn_show_id, pts, title) {
 	frappe.call({
-		method: "erpnext.healthcare.utils.get_patient_vitals",
+		method: 'erpnext.healthcare.utils.get_patient_vitals',
 		args:{
 			patient: patient
 		},
 		callback: function(r) {
-			if (r.message){
-				var show_chart_btns_html = "<div style='padding-top:10px;'><a class='btn btn-default btn-xs btn-show-chart' \
-				data-show-chart-id='bp' data-pts='mmHg' data-title='Blood Pressure'>Blood Pressure</a>\
-				<a class='btn btn-default btn-xs btn-show-chart' data-show-chart-id='pulse_rate' \
-				data-pts='per Minutes' data-title='Respiratory/Pulse Rate'>Respiratory/Pulse Rate</a>\
-				<a class='btn btn-default btn-xs btn-show-chart' data-show-chart-id='temperature' \
-				data-pts='°C or °F' data-title='Temperature'>Temperature</a>\
-				<a class='btn btn-default btn-xs btn-show-chart' data-show-chart-id='bmi' \
-				data-pts='' data-title='BMI'>BMI</a></div>";
-				me.page.main.find(".show_chart_btns").html(show_chart_btns_html);
-				var data = r.message;
+			if (r.message) {
+				let show_chart_btns_html = `
+					<div style='padding-top:10px;'>
+						<a class='btn btn-default btn-xs btn-show-chart' data-show-chart-id='bp' data-pts='mmHg' data-title='Blood Pressure'>
+							${__('Blood Pressure')}
+						</a>
+						<a class='btn btn-default btn-xs btn-show-chart' data-show-chart-id='pulse_rate' data-pts='per Minutes' data-title='Respiratory/Pulse Rate'>
+							${__('Respiratory/Pulse Rate')}
+						</a>
+						<a class='btn btn-default btn-xs btn-show-chart' data-show-chart-id='temperature' data-pts='°C or °F' data-title='Temperature'>
+							${__('Temperature')}
+						</a>
+						<a class='btn btn-default btn-xs btn-show-chart' data-show-chart-id='bmi' data-pts='' data-title='BMI'>
+							${__('BMI')}
+						</a>
+					</div>`;
+
+				me.page.main.find('.show_chart_btns').html(show_chart_btns_html);
+				let data = r.message;
 				let labels = [], datasets = [];
 				let bp_systolic = [], bp_diastolic = [], temperature = [];
 				let pulse = [], respiratory_rate = [], bmi = [], height = [], weight = [];
-				for(var i=0; i<data.length; i++){
-					labels.push(data[i].signs_date+"||"+data[i].signs_time);
-					if(btn_show_id=="bp"){
+
+				for(let i=0; i<data.length; i++) {
+					labels.push(data[i].signs_date+'||'+data[i].signs_time);
+
+					if (btn_show_id === 'bp') {
 						bp_systolic.push(data[i].bp_systolic);
 						bp_diastolic.push(data[i].bp_diastolic);
 					}
-					if(btn_show_id=="temperature"){
+					if (btn_show_id === 'temperature') {
 						temperature.push(data[i].temperature);
 					}
-					if(btn_show_id=="pulse_rate"){
+					if (btn_show_id === 'pulse_rate') {
 						pulse.push(data[i].pulse);
 						respiratory_rate.push(data[i].respiratory_rate);
 					}
-					if(btn_show_id=="bmi"){
+					if (btn_show_id === 'bmi') {
 						bmi.push(data[i].bmi);
 						height.push(data[i].height);
 						weight.push(data[i].weight);
 					}
 				}
-				if(btn_show_id=="temperature"){
-					datasets.push({name: "Temperature", values: temperature, chartType:'line'});
+				if (btn_show_id === 'temperature') {
+					datasets.push({name: 'Temperature', values: temperature, chartType:'line'});
 				}
-				if(btn_show_id=="bmi"){
-					datasets.push({name: "BMI", values: bmi, chartType:'line'});
-					datasets.push({name: "Height", values: height, chartType:'line'});
-					datasets.push({name: "Weight", values: weight, chartType:'line'});
+				if (btn_show_id === 'bmi') {
+					datasets.push({name: 'BMI', values: bmi, chartType:'line'});
+					datasets.push({name: 'Height', values: height, chartType:'line'});
+					datasets.push({name: 'Weight', values: weight, chartType:'line'});
 				}
-				if(btn_show_id=="bp"){
-					datasets.push({name: "BP Systolic", values: bp_systolic, chartType:'line'});
-					datasets.push({name: "BP Diastolic", values: bp_diastolic, chartType:'line'});
+				if (btn_show_id === 'bp') {
+					datasets.push({name: 'BP Systolic', values: bp_systolic, chartType:'line'});
+					datasets.push({name: 'BP Diastolic', values: bp_diastolic, chartType:'line'});
 				}
-				if(btn_show_id=="pulse_rate"){
-					datasets.push({name: "Heart Rate / Pulse", values: pulse, chartType:'line'});
-					datasets.push({name: "Respiratory Rate", values: respiratory_rate, chartType:'line'});
+				if (btn_show_id === 'pulse_rate') {
+					datasets.push({name: 'Heart Rate / Pulse', values: pulse, chartType:'line'});
+					datasets.push({name: 'Respiratory Rate', values: respiratory_rate, chartType:'line'});
 				}
-				new frappe.Chart( ".patient_vital_charts", {
+				new frappe.Chart('.patient_vital_charts', {
 					data: {
 						labels: labels,
 						datasets: datasets
 					},
 
 					title: title,
-					type: 'axis-mixed', // 'axis-mixed', 'bar', 'line', 'pie', 'percentage'
+					type: 'axis-mixed',
 					height: 200,
 					colors: ['purple', '#ffa3ef', 'light-blue'],
 
@@ -296,9 +332,9 @@
 						formatTooltipY: d => d + ' ' + pts,
 					}
 				});
-			}else{
-				me.page.main.find(".patient_vital_charts").html("");
-				me.page.main.find(".show_chart_btns").html("");
+			} else {
+				me.page.main.find('.patient_vital_charts').html('');
+				me.page.main.find('.show_chart_btns').html('');
 			}
 		}
 	});