Help with JavaScript to Submit Form via Email!

The requirements have actually changed slightly since my original post. The only difference that instead of rank, the team I am helping develop this form wants the Patient's Service (this is for the military). Basically, they are looking for the following:

Subject: Patient Notification Form - LastName, First Name (Service)

Body: Please find the attached Patient Notification Form for LastName, FirstName (Service).

Form Field Names:

LastName = Patient_Last_Name

FirstName = Patient_First_Name

Service = Patient_Service

The following script works in that it opens an email dialogue with the form attached:

var cToAddr = "medicalteam@mil"

var cSubLine = "Patient Notification Form"

var cBody = "Please find the attached Patient Notification Form"

this.mailDoc({bUI: true, cTo: cToAddr, cSubject: cSubLine, cMsg: cBody});

When I attempt to add the form field data, that is where I run into problems. Here is one of the scripts used most recently. Adobe accepts the script and lets me save it without producing any errors, but when the button is clicked, nothing happens.

var cToAddr = "medicalteam@mil"
var cSubLine = "Patient Notification Form - " + this.getField(Patient_Last_Name) + ", " + this.getField(Patient_First_Name) + " " + this.getField((Patient_Service))

var cBody = "Please find the attached Patient Notification Form for " + this.getField(Patient_Last_Name) + ", " + this.getField(Patient_First_Name) + " " + this.getField((Patient_Service))

this.mailDoc({bUI: true, cTo: cToAddr, cSubject: cSubLine, cMsg: cBody});