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Frick RG, Klein EG, Ferketich AK, Wewers ME.Frick RG, et al. Among authors: klein eg.J Community Health. 2012 Oct;37(5):963-7. doi: 10.1007/s10900-011-9532-x.J Community Health. 2012.PMID: 22197961
Nemeth JM, Liu ST, Klein EG, Ferketich AK, Kwan MP, Wewers ME.Nemeth JM, et al. Among authors: klein eg.J Community Health. 2012 Dec;37(6):1208-17. doi: 10.1007/s10900-012-9556-x.J Community Health. 2012.PMID: 22427033Free PMC article.