Não informado. (1927). Annals of Internal Medicine. American College of Physicians.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Annals of Internal Medicine. Philadelphia, Pa: American College of Physicians, 1927.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Annals of Internal Medicine. American College of Physicians, 1927.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.