Dermatology is a branch of medicine dealing with the skin, its structure, functions, and diseases (from Greek derma, "skin"). A doctor who practices dermatology is a dermatologist.
... Arctic explorer
Robert Edwin Peary, (1856-1920), first man to reach the North Pole
Auguste Piccard, (1884-1962), physicist and explorer
Jacques Piccard[?], (born 1922), ...