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Ozdemir S, Mohamed AF, Johnson FR, Hauber AB.Ozdemir S, et al. Among authors: johnson fr.Health Econ. 2010 Jan;19(1):111-8. doi: 10.1002/hec.1452.Health Econ. 2010.PMID: 19267358
Johnson FR, Hauber AB, Osoba D, Hsu MA, Coombs J, Copley-Merriman C.Johnson FR, et al.Qual Life Res. 2006 Mar;15(2):285-98. doi: 10.1007/s11136-005-0581-4.Qual Life Res. 2006.PMID: 16468083
Hauber AB, Mohamed AF, Watson ME, Johnson FR, Hernandez JE.Hauber AB, et al. Among authors: johnson fr.AIDS Patient Care STDS. 2009 Jan;23(1):29-34. doi: 10.1089/apc.2008.0064.AIDS Patient Care STDS. 2009.PMID: 19113949
Marshall DA, Johnson FR, Kulin NA, Ozdemir S, Walsh JM, Marshall JK, Van Bebber S, Phillips KA.Marshall DA, et al. Among authors: johnson fr.Health Econ. 2009 Dec;18(12):1420-39. doi: 10.1002/hec.1437.Health Econ. 2009.PMID: 19191268Free PMC article.