Original sentence: In 2007, research by the University of Central Lancashire suggested that the Napoleon complex( certain doctor I know very well here in the Emergency room, he suffers from severe obnoxious personality)  (described in terms of the theory that shorter men are more aggressive to dominate those who are taller than they) may be a myth
Edited sentence: In 2007, research by the University of Central Lancashire suggested that the Napoleon complex (described in terms of the theory that shorter men are more aggressive to dominate those who are taller than they) may be a myth