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Altman DG, Linzer J, Kropp R, Descheemaeker N, Feighery E, Fortmann SP.Altman DG, et al. Among authors: fortmann sp.J Public Health Policy. 1992 Autumn;13(3):318-31.J Public Health Policy. 1992.PMID: 1401050
Henriksen L, Feighery EC, Wang Y, Fortmann SP.Henriksen L, et al. Among authors: fortmann sp.Am J Public Health. 2004 Dec;94(12):2081-3. doi: 10.2105/ajph.94.12.2081.Am J Public Health. 2004.PMID: 15569957Free PMC article.
Frank E, Winkleby MA, Altman DG, Rockhill B, Fortmann SP.Frank E, et al. Among authors: fortmann sp.JAMA. 1991 Dec 11;266(22):3139-44.JAMA. 1991.PMID: 1956100