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Collin SM, Shetty N, Guy R, Nyaga VN, Bull A, Richards MJ, van der Kooi TII, Koek MBG, De Almeida M, Roberts SA, Lamagni T.Collin SM, et al. Among authors: bull a.Int J Infect Dis. 2019 Jun;83:116-129. doi: 10.1016/j.ijid.2019.04.017. Epub 2019 Apr 24.Int J Infect Dis. 2019.PMID: 31028879Free article.
Russo PL, Bull A, Bennett N, Boardman C, Burrell S, Motley J, Friedman ND, Richards M.Russo PL, et al. Among authors: bull a.Aust N Z J Public Health. 2005 Jun;29(3):244-8. doi: 10.1111/j.1467-842x.2005.tb00762.x.Aust N Z J Public Health. 2005.PMID: 15991772Free article.