TY - JOUR AN - 20 AU - Knoops,B. AU - Lison,D. AU - Colette,C. AU - Lauwerys,R. TI - Plasminogen activator activity of normal and retinoic acid treated post-implantation embryos JO - Biochem Pharmacol PY - 1990 VL - 39 SP - 1545-1548 M2 - 1545 DO - 10.1016/0006-2952(90)90519-Q ER -