Bleeding patterns of women using Lunelle™ monthly contraceptive injections (medroxyprogesterone acetate and estradiol cypionate injectable suspension) compared with those of women using Ortho-Novum℗ 7/7/7 (norethindrone/ethinyl estradiol triphasic) or other oral contraceptives - Garceau,R.J.; Wajszczuk,null.; Kaunitz,A.M.; and the Lunelle™ Study Group,null. (Contraception, 2000)