Iron, blood, and nutrition.
D000042:Absorption; D000747:Anemia, Hypochromic / Q000266:history; D005504:Food Analysis; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D007501:Iron / Q000032:analysis / Q000378:metabolism / Q000502:physiology*; D052756:Nutritional Sciences / Q000266:history*; D012106:Research
D007501:Iron