“…Blood samples (06 mL) were collected by indwelling catheter into EDTA containing tubes before dosing and 15, 30, 45 min and also 1, 1.25, 1.5, 1.75, 2, 2.50, 3,4,6,8,12,16,24,36,48,72, 96 h post-dosing for ethinylestradiol and gestodene. The blood samples were centrifuged at 3.000 rpm for 10 min.…”