Osadchuk, M. A., A. A. Svistunov, E. D. Mironova, N. P. Korzhenkov, and M. V. Trushin. 2019. “Gallstone Disease Among Policlinic Staff: Its Development Risks in Different Professional Groups”. Amazonia Investiga 8 (23):244-51. https://amazoniainvestiga.info/index.php/amazonia/article/view/866.