Langerhans' islands.
D002170:Canada; D003920:Diabetes Mellitus / Q000188:drug therapy; D049673:History, 20th Century; D006801:Humans; D007328:Insulin / Q000266:history* / Q000378:metabolism / Q000627:therapeutic use; D000078790:Insulin Secretion; D007515:Islets of Langerhans / Q000378:metabolism
D007328:Insulin