@article{nur_2017,  title={Association of risk factors with smoking during pregnancy among women of childbearing age: an epidemiological field study in Turkey},  volume={135},  ISSN={1516-3180},  url={https://doi.org/10.1590/1516-3180.2016.021921102016},  DOI={10.1590/1516-3180.2016.021921102016},  number={2},  journal={Sao Paulo Medical Journal},  publisher={Associação Paulista de Medicina - APM},  author={Nur, Naim},  year={2017},  month={Mar},  pages={100–106} }