Primary research by Thomas Ankomanin and colleagues. DOI: 10.1371/journal.pone.0342406.
Primary research by Kofi Gyasi Agyei and colleagues. DOI: 10.1371/journal.pone.0343094.
Primary research by Christina Vallen Malichewe and colleagues. DOI: 10.1371/journal.pone.0342485.
Primary research by Gebreeyesus Abera Zeleke and colleagues. DOI: 10.1371/journal.pone.0331328.
Primary research by Nathan Ntenkaire and colleagues. DOI: 10.1371/journal.pone.0327933.
Primary research by Enock Syabbalo and colleagues. DOI: 10.1371/journal.pone.0339690.
Primary research by Odylia Muhenje and colleagues. DOI: 10.1371/journal.pone.0322823.
Primary research by Evan F Griffith and colleagues. DOI: 10.1371/journal.pone.0338167.
Primary research by Elizabeth Shoyemi and colleagues. DOI: 10.1371/journal.pone.0321434.
Primary research by Obed Kwaku Duah Asumadu and colleagues. DOI: 10.1371/journal.pone.0344205.