F1000Research 2019, 8:323 Last updated: 17 MAY 2019
PLOS Medicine | https://doi.org/10.1371/journal.pmed.1002514 March 1, 2018
PLOS ONE | https://doi.org/10.1371/journal.pone.0196239 April 23, 2018
PLOS ONE | DOI:10.1371/journal.pone.0133869 July 28, 2015, p.1-16