AU - DEMARIA WA TI - Difficult diagnosis: A guide to the interpretation of obscure illness. PT - JOUR DP - 1959 TA - A.M.A. Journal of Diseases of Children pages = {895}, VI - 97 IP - 6 AID - 10.1001/archpedi.1959.02070010897026 [doi] 4100 - http://dx.doi.org/10.1001/archpedi.1959.02070010897026 SO - A.M.A. Journal of Diseases of Children June 1, 1959 97(6):895