Granny's herbs and the third crusade.
D000671:Amputation, Surgical / Q000266:history; D049691:History, Medieval; D009892:Opium / Q000266:history; D010207:Papaver; D010598:Pharmacognosy / Q000266:history*; D010936:Plant Extracts / Q000266:history; D010946:Plants, Medicinal; D010947:Plants, Toxic; D011035:Podophyllum / Q000266:history
D010936:Plant Extracts; D009892:Opium