Assessment of fetal risk associated with exposure to cancer chemotherapy during pregnancy: a multicenter study. - Peres,R.M.; Sanseverino,M.T.; Guimaraes,J.L.; Coser,V.; Giuliani,L.; Moreira,R.K.; Ornsten,T.; Schuler-Faccini,L. (Braz J Med Biol Res, 2001)