He then worked in the pathology department at St. George 's from 1948 to 1954 .
In 1950 , Pollack received a master 's degree from St. George 's Hospital Medical School .
Pollack then worked in the pathology department at St. George 's Hospital Medical School     from 1948 to 1954 .
In 1950 , Pollack received a master 's degree from St. George 's Hospital Medical School .