Não informado. (1922). Annals of Clinical Medicine. American College of Physicians.
Lua i Stíl Chicago (17ú heag.)Não informado. Annals of Clinical Medicine. Baltimore, Md: American College of Physicians, 1922.
Lua MLA (8ú heag.)Não informado. Annals of Clinical Medicine. American College of Physicians, 1922.
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