1. The use of amnioscopy in the detection of Meconium;Barham;Aust. N.Z. J. Obstet. Gynaec.,1968
2. pH of fetal capillary blood as an indication of the condition of the fetus;Beard;J. Obstet. Gynaec. Brit. Cwlth.,1967
3. The value of urinary estriol measurements during pregnancy;Beischer;Obstetric and Gynaecologic Digest,1968
4. Brown J.B. Beischer N.A. Urinary oestriol excretion as a measure of foetal welfare Fifth World Congress of Gynaecology and Obstetrics Sydney, 1967, Butterworths 75 1967