4 ms·

Professional and Home-Made Face Masks Reduce Exposure to Respiratory Infections among the General Population. Marianne van der Sande. 2008. doi:10.1371/journal.

by f0ok 7y ago

Professional and Home-Made Face Masks Reduce Exposure to Respiratory Infections among the General Population. Marianne van der Sande. 2008. doi:10.1371/journal.pone.0002618

bmn__ 7y ago
https://sci-hub.tw/10.1371/journal.pone.0002618 https://sci-hub.tw/10.1371/journal.pone.0002618