1. Pregnancy during residency. The resident, her colleagues, and the programme;McGregor;J SOGC,1995
2. 1 Aristotle: [Historia Animalium] Book VII trans. Creswell R. London: George Bell and Sons, 1987. c 350 B.C.1
3. The prognosis for live birth among untreated infertile couples;Collins;Fertil Steril,1995
4. Elusive fertility: fecundability and assisted conception in perspective;Jansen;Fertil Steril,1995
5. Reproductive potential in the older woman;Gindoff,1989