Wijarnpreecha, K., Werlang, M., Panjawatanan, P., Kroner, P., Mousa, O., Pungpapong, S., Lukens, F., Harnois, D., & Ungprasert, P. (2019). Association between Smoking and Risk of Primary Biliary Cholangitis: A Systematic Review and Meta-Analysis. Journal of Gastrointestinal and Liver Diseases, 28(2), 197-203. https://doi.org/10.15403/jgld-181