TY - JOUR T1 - Oral Contraceptives AU - Alaca, Necdet Y1 - 1977 PY - 1977 DA - 1977 N1 - doi: DO - T2 - The Medical Bulletin of Sisli Etfal Hospital JF - The Medical Bulletin of Sisli Etfal Hospital JO - Med Bull Sisli Etfal Hosp SP - 388 EP - 395 VL - 11 IS - 4 SN - M3 - doi: UR - https://dx.doi.org/ Y2 - 1977 ER -