Maybe 10 years ago the phone rang, "Dr. Bortz, my name is Mary McCarthy and I am a friend of Dr. Peter Wood. I have recently moved here and so am anxious to find a good doctor. Peter, knowing that you have practiced here in Palo Alto for a long while, suggested your name as a likely referral source.
But Peter Wood was a very close friend and colleague. He is famous for his discovery that exercise leads to elevated levels of the good cholesterol. His license plate was "HIGH HDL." So with little fuss I volunteered the names of three primary care docs from my clinic.