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Martínez-Frías ML, Bermejo E, Pérez B, Desviat LR, Castro M, Leal F, Mansilla E, Martínez-Fernández ML, Rodríguez-Pinilla E, Rodríguez L, Ugarte M; Grupo de Trabajo del Estudio Colaborativo Español de Malformaciones Congénitas (ECEMC).Martínez-Frías ML, et al. Among authors: perez b.Med Clin (Barc). 2008 Jun 21;131(3):81-8. doi: 10.1157/13124010.Med Clin (Barc). 2008.PMID: 18590621Spanish.
Nicolini H, Cruz C, Camarena B, Fernanda Merino M, Bilbao G, Vela M, Velázquez A, Pérez B, Desviat L, Ugarte M.Nicolini H, et al. Among authors: perez b.Arch Med Res. 1995 Spring;26(1):53-7.Arch Med Res. 1995.PMID: 7711448