1. The cleavage of steroid sulphates by sheep and pig fetal liver, fetal kidney and placental preparations in vitro;Ainsworth;Steroids,1972
2. Hypophysical and uterine influences on pig luteal function;Anderson,1967
3. Oestrogen, progesterone and corticosteroid concentration in peripheral plasma of sows during pregnancy, parturition, lactation and after weaning;Ash;J. Endocr.,1975
4. Endocrine changes in the pig during late pregnancy, parturition and lactation;Baldwin;Biol. Reprod.,1975
5. Post weaning oestrus and luteal function in primiparous and pluriparous sows;Benjaminsen;Res. in Vet. Sci.,1981