Professional controversy In 1977, Bernstein was instructed to testify before the Discipline Committee of the College of Physicians and Surgeons of Ontario in allegations that he had inappropriate sexual relations with Jo-Anne Johnston, who was mentally fragile and a patient of his from 1970 to 1973.

For the past couple of years, patients who live far from our clinics have successfully participated in the Dr. Bernstein weight loss program using our At Home Weight Loss Program. This allows patients to follow the program with fewer in-clinic visits.

The Bernstein technique is a powerful tool to establish derivative estimates, through the use of auxiliary functions and the maximum principle, for solutions of elliptic equations. The goal of this paper is to extend this method to the setting of fractional equations.