1. Gynaecologists and the Population Investigation Committee. Maternity in Great Britain,1948
2. Where to be born? The debate and the evidence;Campbell, R.; MacFarlane, A.,1987
3. General practitioner participation in intranatal;Marsh, G.N.; Cashman, H.A.; Russell, I.T.;care in the Northern region in; BMJ,1983
4. Population Censuses and Surveys. Birth statistics;Office of,1988
5. General practitioner obstetrics in Bradford;Bryce, F.C.; Clayton, J.K.; Rand, R.J.; Beck, I.; Farquharson, D.I.M.; Jones, S.E.;BMJ,1990