Herbal healers.
Haines
J D
JD
D000368:Aged; D004501:Education, Medical / Q000639:trends*; D006801:Humans; D010819:Physician's Role; D008517:Phytotherapy; D010946:Plants, Medicinal / Q000627:therapeutic use; D014805:Vitamin B 12 / Q000627:therapeutic use; D014815:Vitamins / Q000627:therapeutic use*
D014815:Vitamins; D014805:Vitamin B 12