Ebruke, Chinelo, Roca, Anna, Egere, Uzochukwu, Darboe, Ousainou, Hill, Philip C., Greenwood, Brian (Brian A.), Wren, Brendan, Adegbola, Richard A. and Antonio, Martin (2015) Temporal changes in nasopharyngeal carriage of Streptococcus pneumoniaeserotype 1 genotypes in healthy Gambians before and after the 7-valent pneumococcal conjugate vaccine. PeerJ PrePrints, Volume 3 . Article number e903. doi:10.7717/peerj.903