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Wilhelm Fliess

German physician

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Wilhelm Fliess was a German physician who was a close friend and colleague of Sigmund Freud. Fliess was an ear, nose, and throat specialist who developed theories about the connection between the nose and various psychological and physical ailments. He also proposed ideas about human bisexuality and the concept of erogenous zones, which influenced Freud's early psychoanalytic theories. Their close collaboration lasted for about 15 years, during which Fliess served as an important sounding board for Freud's developing ideas.1

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