"Etats-Unis. Congress. Senate. Committee on Labor and Human Resources." . . . . . . . . . . "Substance abuse in pregnancy economic and social costs : hearing before the Committee on Labor and Human Resources, United States Senate, One Hundred First Congress, second session, on examining the subject of substance abuse among women of child-bearing age, April 11, 1990, Seattle, WA"@en . . "Substance abuse in pregnancy : economic and social costs : hearing before the Committee on Labor and Human Resources, United States Senate, One Hundred First Congress, second session, on examining the subject of substance abuse among women of child-bearing age, April 11, 1990, Seattle, WA"@en . . . . . . . "[Substance abuse in pregnancy economic and social costs : hearing before the Committee on Labor and Human Resources, United States Senate, One Hundred First Congress, second session, on examining the subject of substance abuse among women of child-bearing age, April 11, 1990, Seattle, WA.]" . . . . . . . . .