Author J. Amegadzie O. Badejo J. Gamble M. Wright J. Farrell B. Jackson K. Sultana M. Hashmi Z. Gao Year of Publication 2019 DOI 10.1136/bmjopen-2018-024306 DOIGoogle ScholarBibTeXEndNote X3 XMLEndNote 7 XMLEndnote taggedMarcRIS