1. Singleton N, Bumpstead R, O’Brien M, Lee A, Meltzer H (2001) Psychiatric Morbidity among adults living in private households, 2000. Office for National Statistics. The Stationary Office, London
2. Ellwood DA, Sutherland P, Kent C, O'Connor M (1987) Maternal narcotic addiction: pregnancy outcome in patients managed by a specialized drug-dependency antenatal clinic. Aust & NZ Obsett and Gynae 27:92–98
3. Finnegan LP (1983) Clinical perinatal and development effects of methadone. In: Cooper JR, Altman F, Brown BS, Czechowicz D (eds) Research on the Treatment of Narcotic Addiction: State of the Art. Maryland: National Institute on Drug Abuse, USA
4. Finnegan L P (1991) Treatment issues for opioid-dependent women during the perinatal period. J Psycho Drugs 23:191–201
5. Salerno LJ (1979) Prenatal care. In: Rementeria J (ed) Drug Abuse in Pregnancy and Neonatal Effects St Louis, CV, USA: Mosby Company pp.19–29