TI - DIagnostic problems PT - JOUR DP - 1959 TA - Journal of the American Medical Association pages = {136-142}, VI - 169 IP - 2 AID - 10.1001/jama.1959.03000190038010 [doi] 4100 - http://dx.doi.org/10.1001/jama.1959.03000190038010 SO - Journal of the American Medical Association January 10, 1959 169(2):136