R. Perry

发表

M. Hediger, T. Scholl, R. Perry, 1996, The Journal of maternal-fetal medicine.

M. Hediger, T. Scholl, R. Fischer, 1993, Obstetrics and gynecology.

W. Barth, A. Satin, G. Hankins, 1996, American journal of obstetrics and gynecology.