What is "referrals"

Usage examples of "referrals".

Apparently some unlicensed syn-psych therapists have been forging referrals for a fee.

Certain powerful people, those who made it possible for him to continue in the illegal sideline of his profession, were displeased that he still made referrals to the cultists.

I rarely take patients without referrals, but a case like this one has a textbook quality to it.

Student referrals were responsible for easily a third of the students she regularly saw.