Study		Exclusion reasons	Remarks	Reference(s)
Liu, 2021	randomized controlled trial	no clinically relevant endpoint		Liu J J Infect Dis 2021 Dec 27;jiab627. 10.1093/infdis/jiab627
Chen, 2021	randomized controlled trial	other		Chen J Zhonghua Liu Xing Bing Xue Za Zhi 2021 Dec 10;42(12):2077-2081. 10.3760/cma.j.cn112338-20210807-00617