Supplementary data1 -Supplemental material for Association between smoking and risk of primary sclerosing cholangitis: A systematic review and meta-analysis

Supplemental material, Supplementary data1 for Association between smoking and risk of primary sclerosing cholangitis: A systematic review and meta-analysis by Karn Wijarnpreecha, Panadeekarn Panjawatanan, Omar Y Mousa, Wisit Cheungpasitporn, Surakit Pungpapong and Patompong Ungprasert in United European Gastroenterology Journal