Avi OhryTel Aviv, Israel In November 1839, Dr. John Clendinning delivered at the St. Marylebone Infirmary a lecture on the examination of the sick, the principal sources of fallacy attending practical diagnosis, and “on feignted [not “feigned”] and concealed diseases, and insidious complications of disease.”1 The lecturer discussed “hysteria” and other neuroses, and a disease…