title: Nutrition classics. Journal of Biological Chemistry (volume) 130; 1939 pages 219-234: The isolation of vitamin K1.
mesh_terms: D000818:Animals; D002417:Cattle; D006666:History of Medicine; D014481:United States; D014812:Vitamin K / Q000266:history* / Q000302:isolation & purification
chemical_list: D014812:Vitamin K