Doctor: Of course, that's my function. Third-degree burns, hairline jaw fracture, and a ruptured blood vessel in his brain. I'll have to operate.
EMH: I'm a doctor. Whether my patient is human, or Romulan, I'll do everything in my power to save him. You're welcome to assist me if you like, or maybe you'd just prefer to supervise.
EMH: Computer, can I access this ship's EMH programme or do I need some kind of clearance for that, too?
Prometheus EMH: Please state the nature of the medical emergency. (notices the Doctor) What the hell are you doing in my sickbay?! I've been programmed to identify every member of this crew. You aren't one of them!
Prometheus EMH: Beady eyes, terrible bedside manner. I recognize you. But you're not part of this database. What are you doing here?
EMH: If you disengage your vocal subroutines for one second, I'd explain. I was transmitted onto this ship by a Starfleet vessel over sixty thousand light-years from here.
EMH: It's the Starship Voyager. We were taken into the Delta Quadrant four years ago by an alien force. what are you doing?