@BOOK{NAP20657, title = "Mucous Colitis: A Psychological Medical Study of Sixty Cases", doi = "10.17226/20657", url = "https://nap.nationalacademies.org/catalog/20657/mucous-colitis-a-psychological-medical-study-of-sixty-cases", year = 1939, publisher = "The National Academies Press", address = "Washington, DC" }