TI - DIrectory of pediatric societies PT - JOUR DP - 1939 TA - American Journal of Diseases of Children pages = {1478-1484}, VI - 57 IP - 6 AID - 10.1001/archpedi.1939.01990060258031 [doi] 4100 - http://dx.doi.org/10.1001/archpedi.1939.01990060258031 SO - American Journal of Diseases of Children June 1, 1939 57(6):1478