AU - SANFORD HN TI - PEdiatric report on medical conditions in puerto rico PT - JOUR DP - 1949 TA - American Journal of Diseases of Children pages = {665-669}, VI - 77 IP - 5 AID - 10.1001/archpedi.1949.02030040679011 [doi] 4100 - http://dx.doi.org/10.1001/archpedi.1949.02030040679011 SO - American Journal of Diseases of Children May 1, 1949 77(5):665