00692nam 2200157z- 450 9910712179903321(CKB)5470000002490310(EXLCZ)99547000000249031020230509c1991uuuu -u- -engMethodological issues in controlled studies on effects of prenatal exposure to drug abuseRockville, MDU.S. Department of Health and Human Services, Public Health Service, Alcohol, Drug Abuse, and Mental Health Administration, National Institute on Drug AbuseBOOK9910712179903321Methodological issues in controlled studies on effects of prenatal exposure to drug abuse3304078UNINA