Nasopharyngeal carriage of Streptococcus pneumoniae among healthy children in Kassena-Nankana districts of Northern Ghana. - Narwortey, Deborah K.; Owusu-Ofori, Alex; Slotved, Hans-Christian; Donkor, Eric S.; Ansah, Patrick O.; Welaga, Paul; Agongo, Godfred; Oduro, Abraham R. (BMC Infectious Diseases, 2021)