@article{ullah_khan_kakakhel_xi_bai_kalra_guanlan_kumar_shah_zhang_2022,  title={Serological prevalence of hepatitis B virus (HBV) in Mardan district, Khyber Pakhtunkhwa, Pakistan},  volume={82},  ISSN={1519-6984},  url={https://doi.org/10.1590/1519-6984.245813},  DOI={10.1590/1519-6984.245813},  journal={Brazilian Journal of Biology},  publisher={Instituto Internacional de Ecologia},  author={Ullah, N. and Khan, I. and Kakakhel, M. A. and Xi, L. and Bai, Y. and Kalra, B. S. and Guanlan, L. and Kumar, T. and Shah, M. and Zhang, C.},  year={2022},  pages={e245813} }