RT Burkman Publications Burkman R T, Heinemann Lothar A , Progestins and thrombosis Dialogues in Contraception. 2001; Winter; 7(3):5-7, 8.
Burkman R T, Heinemann Lothar A , Progestins and thrombosis Dialogues in Contraception. 2001; Winter; 7(3):5-7, 8.