It's not about doctors, but R. Kent Rasmussen has a great quote about
"stupidity"  in MT:  HIS WORDS, WIT, AND WISDOM:

"Stupid people--who constitute the grand overwhelming majority of this and
all other nations--do believe and are moulded . . . by what they get out of
a newspaper."

(Rasmussen 268 [Speech in Hartford, 1873; Speeches/Paine, p. 48])