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Piñero A, Martínez-Escribano J, Martínez-Barba E, Parrilla P.Piñero A, et al.Med Clin (Barc). 2001 Feb 24;116(7):276. doi: 10.1016/s0025-7753(01)71794-0.Med Clin (Barc). 2001.PMID: 11333739Spanish.No abstract available.