1. Psychogenic vomiting: psychotherapeutic considerations;Leibovich, M.A.;PsychotherPsychosom,1973
2. Persistent nausea without organic cause;Swanson, D.W.; Swenson, W.M.; Huizenga, K.A.; Melson, S.J.
3. Psychogenic vomiting;Hill, O.W.;Gut,1968
4. Unexplained vomiting: a diagnostic challenge;Malagelada, J.,1984
5. The diagnosis and management of nausea and;Hanson, J.S.