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Zwang J, Garenne M, Kahn K, Collinson M, Tollman SM.Zwang J, et al. Among authors: tollman sm.Trans R Soc Trop Med Hyg. 2007 Sep;101(9):893-8. doi: 10.1016/j.trstmh.2007.04.023. Epub 2007 Jun 26.Trans R Soc Trop Med Hyg. 2007.PMID: 17597174
Kahn K, Tollman SM, Collinson MA, Clark SJ, Twine R, Clark BD, Shabangu M, Gómez-Olivé FX, Mokoena O, Garenne ML.Kahn K, et al. Among authors: tollman sm.Scand J Public Health Suppl. 2007 Aug;69:8-20. doi: 10.1080/14034950701505031.Scand J Public Health Suppl. 2007.PMID: 17676498Free PMC article.
Clark SJ, Collinson MA, Kahn K, Drullinger K, Tollman SM.Clark SJ, et al. Among authors: tollman sm.Scand J Public Health Suppl. 2007 Aug;69:35-44. doi: 10.1080/14034950701355619.Scand J Public Health Suppl. 2007.PMID: 17676501Free PMC article.