AU - WINTER RJ TI - REsearch during residency PT - JOUR DP - 1989 TA - American Journal of Diseases of Children pages = {521}, VI - 143 IP - 5 AID - 10.1001/archpedi.1989.02150170015008 [doi] 4100 - http://dx.doi.org/10.1001/archpedi.1989.02150170015008 SO - American Journal of Diseases of Children May 1, 1989 143(5):521