Rizaev E.A, Kurbaniyazov Z.B, Mamarazhabov S.E, Nurmurzaev Z.N, and Abdurakhmanov D.Sh. “Surgery of Cholelithiasis in Patients Older Than 60 Years”. Texas Journal of Medical Science, vol. 18, Mar. 2023, pp. 25-29, doi:10.62480/tjms.2023.vol18.pp25-29.