This review explores some of the implications for a balanced approach to th
e ethics of maternal participation in clinical research, from the perspecti
ve of the fetus as a patient, which is a central concept in obstetric ethic
s. The review therefore begins with an account of this topic, followed by a
n examination of some of its ethical implications for a balanced approach t
o the ethics of clinical research that involves pregnant women. Curr Opin O
bstet Gynecol 11:549-551, (C) 1999 Lippincott Williams & Wilkins.