1. Aleksandrowicz M. K. 1974. The effect of pain relieving drugs administered during labour and delivery on the behaviour of the newborn: A review. Merril-Palmer Quarterly. 20, 2.
2. Aleksandrowicz M. K. and Aleksandrowicz D. R. 1974. Obstetrical pain-relieving drugs as predictors of infant behaviour variability. Child Development 45, 935.
3. Apgar V. 1953. A proposal for a new method of evaluation of the newborn infant.Anesth. Analg.(Cleveland).32, 260.
4. Apler M. H., Brown NL., Ostheimer G. W. and Scanlon J. W. 1975. Effects of maternal analgesia and anaesthesia on the newborn. Clinics in Obstetrics and Gynaecology..Edited by Rosen M.,Saunders.London. Vol. 2, No. 3, 661.
5. Barrier G. and Sureau C. 1982. Effects of anaesthetic and analgesic drugs on labour, fetus and neonate. In: Clinics in Obstetrics and Gynaecology. Edited by Rosen M., Saunders. London. 9, 351.