1. Counselling prior to prenatal testing;Abramsky,1994
2. Midwifery and models of care;Bryar;Midwifery,1987
3. Screening issues: the public health debate;Chapple,1994
4. Qualitative data analysis for grounded theory;Corbin,1986
5. The stress of tests in pregnancy — summary of a National Childbirth Trust antenatal screening survey;Dodds,1997