The first by Rancourt is his review of harms caused by face masks. It is not a published paper (probably because publishing hard-hitting and critical truths in certain journals is unwelcome these days!), but at the end of this document she will find about 30 references to some of the most recent papers and studies that have been conducted. It is useful to read Rancourt’s comments linked to the respective references, because they bring out the main points of note.

Source and full article with references:
PMC – US National Library of Medicine National Institute of Health