1. Avery, P. and Olsen, I.M. (1987) Expanding the scope of childbirth education to meet the needs of hospitalised high risk clients. Journal of Obstetric, Gynecological and Neonatal Nursing, 16 (6), 418–21.
2. Black, T. (1985) Smoking in pregnancy revisited. Midwifery, 1 (3), 135–45.
3. Butters, L. (1987) The midwife and high risk pregnancies: experience in an obstetric medical clinic. Midwives Chronicle, 100 (1,194), 199–202.
4. Carlson, B. and Labarba, R.C. (1979) Maternal emotionality during pregnancy and reproductive outcome: a review of the literature. International Journal of Behavioural Development, 2 (4), 343–76.
5. Cartwright, A. (1964) Human relations and hospital care. Routledge and Kegan Paul, London.