Homchampa P, Tuyet Duy LL. Health problems and health care outcomes of older patients admitted to intensive care units in the lowand middle-income countries: A systematic review and meta-analysis. Bu J Med [internet]. 2020 Dec. 31 [cited 2026 Sep. 28];7(2):39-64. available from: https://he01.tci-thaijo.org/index.php/BJmed/article/view/246899