The combination of levonorgestrel 0. mg and ethinylestradiol 0.0 mg as an ultra-low dosage oral contraceptive in its pilule form was studied in nine clinics in Beijing.
The combination of levonorgestrel 0. mg and ethinylestradiol 0.0 mg as an ultra-low dosage oral contraceptive in its pilule form was studied in nine clinics in Beijing.
左旋8甲基炔诺酮0.mg与炔雌醇0.0 mg配伍的超低剂量口服避孕滴丸,98 年在北京9个医院进行临床试验。