?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Chhibber&rft.aufirst=A&rft.au=Chhibber%2C+A&rft.date=16+September+2021&rft.issue=1&rft.atitle=Assessment+of+health+equity+consideration+in+masking%2FPPE+policies+to+contain+COVID-19+using+PROGRESS-plus+framework%3A+a+systematic+review&rft.title=BMC+Public+Health&rft.volume=21&rft.genre=article