Chinese Research Hospital Association, Society for Hepato-pancreato-biliary Surgery, Expert Committee of Public Welfare Scientific Research Program of National Health Commission. Guidelines for minimally invasive surgery for hepatolithiasis (2019 edition)[J]. Chinese Journal of Digestive Surgery, 2019, 18(5): 407-413. DOI: 10.3760/cma.j.issn.1673-9752.2019.05.001