Não informado. (2018). Publications of the Massachusetts General Hospital. Massachusetts General Hospital.
Chicago-referens (17:e uppl.)Não informado. Publications of the Massachusetts General Hospital. Boston, Mass: Massachusetts General Hospital, 2018.
MLA-referens (8:e uppl.)Não informado. Publications of the Massachusetts General Hospital. Massachusetts General Hospital, 2018.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.