Wang, S. ., and Z. . Fan. “The Role of GSTM1 Gene Polymorphism in Pathophysiology, Evaluation, and Management of Constipation of Anorectal Outlet Obstruction”. Cellular and Molecular Biology, vol. 67, no. 3, Nov. 2021, pp. 163-7, doi:10.14715/cmb/2021.67.3.25.