@article{doi:,
author = {Alaca, Necdet},
title = {Oral Contraceptives},
journal = {Med Bull Sisli Etfal Hosp},
volume = {11},
number = {4},
pages = {388-395},
year = {1977},
doi = {},
note ={doi: },

URL = {https://dx.doi.org/},
eprint = {https://dx.doi.org/}
}