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Sitges M, Bosch X, Sanz G, Heras M, Miranda F, Anguera I, Sambola A, Betriu A.Sitges M, et al. Among authors: heras m.Rev Esp Cardiol. 1998 Sep;51(9):732-9. doi: 10.1016/s0300-8932(98)74816-x.Rev Esp Cardiol. 1998.PMID: 9803799Free article.Spanish.
Sitges M, Roqué M, Solanes N, Rigol M, Heras M, Roig E, Luis Pomar J, Jiménez W, Sanz G.Sitges M, et al. Among authors: heras m.Rev Esp Cardiol. 2001 Aug;54(8):990-6. doi: 10.1016/s0300-8932(01)76435-4.Rev Esp Cardiol. 2001.PMID: 11481114Free article.Spanish.
Betriu A, Heras M, Sanz G.Betriu A, et al. Among authors: heras m.Rev Esp Cardiol. 1987 Jan-Feb;40(1):3-7.Rev Esp Cardiol. 1987.PMID: 2950574Spanish.No abstract available.