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Baré M, Castells X, Garcia A, Riu M, Comas M, Egea MJ.Baré M, et al. Among authors: castells x.Int J Technol Assess Health Care. 2006 Spring;22(2):242-8. doi: 10.1017/S0266462306051063.Int J Technol Assess Health Care. 2006.PMID: 16571200
Acosta-Rojas ER, Comas M, Sala M, Castells X.Acosta-Rojas ER, et al. Among authors: castells x.Ophthalmic Epidemiol. 2006 Oct;13(5):299-307. doi: 10.1080/09286580600694464.Ophthalmic Epidemiol. 2006.PMID: 17060108
Cots F, Castells X, García O, Riu M, Felipe A, Vall O.Cots F, et al. Among authors: castells x.BMC Health Serv Res. 2007 Jan 19;7:9. doi: 10.1186/1472-6963-7-9.BMC Health Serv Res. 2007.PMID: 17239236Free PMC article.
Hoffmeister L, Román R, Comas M, Cots F, Bernal-Delgado E, Castells X.Hoffmeister L, et al. Among authors: castells x.BMC Health Serv Res. 2007 Apr 13;7:53. doi: 10.1186/1472-6963-7-53.BMC Health Serv Res. 2007.PMID: 17433101Free PMC article.
Buron A, Cots F, Garcia O, Vall O, Castells X.Buron A, et al. Among authors: castells x.BMC Health Serv Res. 2008 Mar 3;8:51. doi: 10.1186/1472-6963-8-51.BMC Health Serv Res. 2008.PMID: 18315871Free PMC article.
Castells X, Sala M, Salas D, Ascunce N, Zubizarreta R, Casamitjana M.Castells X, et al.Gac Sanit. 2009 May-Jun;23(3):244-9. doi: 10.1016/j.gaceta.2008.09.007. Epub 2009 Mar 14.Gac Sanit. 2009.PMID: 19286278Free article.Spanish.No abstract available.