http://wir2018.wid.world/files/download/wir2018-summary-spanish.pdf
https://www.bmj.com/content/372/bmj.n314
https://www.thelancet.com/action/showPdf?pii=S1473-3099%2820%2930144-4
https://open.clemson.edu/cgi/viewcontent.cgi?article=1004&context=mfh_reports