TY - BOOK ID - circref2514 T1 - Effective care in pregnancy and childbirth T2 - Series: Oxford medical publications. AU - Chalmers, Iain., Enkin, Murray., Keirse, Marc J. N. C. PB - Oxford Medical Publications PY - 1989 CY - Oxford ; New York UR - KW - Childbirth KW - Labor KW - Prenatal care ER -