1. Eggs shared, given, and sold.;Editorial;Lancet,2003
2. Repetitive oocyte donation: a practice committee report, a committee opinion.;American Society for Reproductive Medicine,2000
3. Financial incentives in recruitment of oocyte donors.;The Ethics Committee of the American Society for Reproductive Medicine;Fertil Steril,2000
4. The effect of repeated controlled ovarian stimulation in donors.;Caligana;Hum Reprod,2001