Complex sentence: Joan Bicknell (April 10,1939-June 12,2017) was Britain ´ s first female psychiatry professor at St George's, University of London who pioneered the area of learning disability.
Split into simpler sentences: Joan Bicknell (April 10,1939-June 12,2017) was Britain ´ s first female psychiatry professor. She worked at St George's, University of London and pioneered the area of learning disability.