Einhorn Max (1862, Grodno — 1953, New York) — gastroenterologist. MD (1884), professor (1899).
Studied at the universities of Riga, Kyiv and Berlin. From 1885 — in the USA.
In 1888–1922 — at the New York Medical School: assistant professor, professor. Creator of new systems (including new instruments) for the diagnosis and treatment of gastrointestinal diseases by gastrodiaphany. Author of monographs “Stomach Diseases” (1896), “Diseases of the Internal Organs” (1900), “Practical Problems of Diet and Nutrition” (1905), “Lectures on Dietetics” (1916), “Duodenal Examination and Its Possibilities” (1920).

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