No single doctor can handle all aspects of your treatment for colorectal cancer.
They'll probably contact and they'll check every single doctor.
I dare you to name a single doctor who never took any of his own drugs!
"I imagine you have your hands full - a single doctor on a destroyer."
And when a sick man is lying on the operating table, you need a single doctor, not a team of consultants.
Finally, Family Care gave her the name of a single doctor.
But, the appeals court went on, a single doctor's opinion does not suffice.
I did not see a single doctor, nurse, or patient, but I could feel their presence nearby.
There wasn't a single doctor who was encouraging me.
There was also a single doctor assigned to the program.