@hughjassdevice @zorinaq @kinger6687 Specifically, infection LESS likely to occur in the mask group (1.8%) than the control group (2.1%)
https://pubmed.ncbi.nlm.nih.go... https://t.co/0fOsj18zUW
@hughjassdevice@zorinaq@kinger6687特别是，口罩组（1.8%）感染的可能性低于对照组（2.1%）
https://pubmed.ncbi.nlm.nih.go... https://t.co/0fOsj18zUW