Which of the following diseases is caused by a fungus?

The standard dose of promethazine when used to potentiate the effects of narcotics is:

a. 25 mg b. 50 mg c. 2.5 mg d. It is contraindicated to give promethazine concomitantly to a patient who is receiving narcotic analgesics

A physician specially trained in the nature and cause of disease is a(n) ____________________.

Fill in the blank(s) with the appropriate word(s).