After laparoscopic surgery , patients were randomized to three groups : in Group A ( n = 52 ) oral contraceptive ( OC ) was administered one pill a day , continuous for 63days without intervals , in Group B ( n = 52 ) OC was administered as above and then Dan ' e mixture was added 30g/day for the latter 30days , and in control Group C ( n = 52 ) patients tried to get pregnant after surgery without complementary treatment .