title: Observations on the etiologic relationship of achylia gastrica to pernicious anemia. X. Activity of vitamin B12 food (extrinsic) factor. 1948.
authors.affiliation: Thorndike Memorial Laboratory, Second and Fourth Medical Services (Harvard), Boston City Hospital, USA.
authors.forename: Lionel
authors.initials: L
authors.lastname: Berk
authors.forename: William B
authors.initials: WB
authors.lastname: Castle
authors.forename: Arnold D
authors.initials: AD
authors.lastname: Welch
authors.forename: Robert W
authors.initials: RW
authors.lastname: Heinle
authors.forename: Rudolf
authors.initials: R
authors.lastname: Anker
authors.forename: Martin
authors.initials: M
authors.lastname: Epstein
mesh_terms: D000126:Achlorhydria / Q000266:history*; D000752:Anemia, Pernicious / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D014805:Vitamin B 12 / Q000266:history*
chemical_list: D014805:Vitamin B 12