Progesterone Treatment of Uterine and Other Abdominal Fibroids Induced in the Guinea Pig by Alpha-Estradiol^*†

Because of the difficulties of international communication the authors have not read proof of this article.

This investigation has been aided by a grant from The Jane Coffin Childs Memorial Fund for Medical Research, and the Rockefeller Foundation. Alpha-estradiol was generously supplied by Dr. Karl Miescher and Dr. C. Oppenheimer, of Ciba Pharmaceutical Products. Progesterone was obtained through the kindness of Dr. M. Tausk, of Organon, Holland.