@article{halpern_coelho_2016,  title={Excessive crying in infants},  volume={92},  ISSN={0021-7557},  url={https://doi.org/10.1016/j.jped.2016.01.004},  DOI={10.1016/j.jped.2016.01.004},  number={3},  journal={Jornal de Pediatria},  publisher={Sociedade Brasileira de Pediatria},  author={Halpern, Ricardo and Coelho, Renato},  year={2016},  month={May},  pages={40–45} }