AU - GROZIN M TI - DIphtheria scratch test PT - JOUR DP - 1939 TA - American Journal of Diseases of Children pages = {564-569}, VI - 57 IP - 3 AID - 10.1001/archpedi.1939.01990030078008 [doi] 4100 - http://dx.doi.org/10.1001/archpedi.1939.01990030078008 SO - American Journal of Diseases of Children March 1, 1939 57(3):564