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Yes a doctor doctoring a doctor means the doctor doctoring is the doctor!
its A DOCTOR AND HIM
The doctor and him
It depends: The doctor and he went to the drug store. I was looking for the doctor and him.
Carry on Doctor, Doctor in the House, Doctor Zhivago, Doctor Jekyll and Mr Hyde, Doctor No, Doc Hollywood, Doctor Doolittle
David Tennant is The 10th Doctor in Doctor Who.