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Ataulfo González F, Armada B, Villegas A, Llorente L, Pérez J, Díaz Mediavilla J, del Potro E, Martínez R, Alvarez A, Espinós D.Ataulfo González F, et al. Among authors: villegas a.Med Clin (Barc). 1997 May 17;108(19):730-3.Med Clin (Barc). 1997.PMID: 9324596Spanish.
del Potro E, Espinola Guedes G, Martínez R, Alvarez A, Díaz Mediavilla J, Martín C, Villegas A, Espinós D.del Potro E, et al. Among authors: villegas a.Rev Clin Esp. 1991 Jun;189(1):21-2.Rev Clin Esp. 1991.PMID: 1924921Spanish.
González FA, Villegas A, Ferro MT, San Román C, Sáez I, López M, del Potro E, Alvarez A, Martínez R, Díaz Madiavilla J, et al.González FA, et al. Among authors: villegas a.Med Clin (Barc). 1993 Oct 30;101(14):521-4.Med Clin (Barc). 1993.PMID: 8231395Spanish.
Martín M, Casado A, Llorente L, López Martín JA, Rodríguez Lescure A, Nieto Y, Ayala F, Pérez Calvo J, Alonso JL, Pérez López C, Villegas A, Díaz-Rubio E.Martín M, et al. Among authors: villegas a.Med Clin (Barc). 1997 Dec 6;109(20):775-81.Med Clin (Barc). 1997.PMID: 9493155Spanish.
Anguita E, Villegas A, González FA, del Potro E, Martínez R, Alvarez A, Díaz-Mediavilla J, Ferro MT, Espinós D.Anguita E, et al. Among authors: villegas a.Med Clin (Barc). 1999 Apr 17;112(13):481-4.Med Clin (Barc). 1999.PMID: 10353112Spanish.
Villegas A, Ropero P, Anguita E, Hernández A, Polo M, Ataúlfo González F.Villegas A, et al.Med Clin (Barc). 2011 May 28;136(15):674-7. doi: 10.1016/j.medcli.2011.01.015. Epub 2011 Mar 31.Med Clin (Barc). 2011.PMID: 21453942Spanish.
Villegas A, López Rubio M, Sánchez J, González A, Pérez Clausell C, Sal del Río A, del Potro E, Valverde F, Espinós D.Villegas A, et al.Rev Clin Esp. 1993 Apr;192(6):268-70.Rev Clin Esp. 1993.PMID: 8497721Spanish.
Ropero P, González FA, Sánchez J, Armada B, Martí E, Valdés B, Mora A, Villegas A.Ropero P, et al. Among authors: villegas a.Med Clin (Barc). 1997 Mar 15;108(10):385-8.Med Clin (Barc). 1997.PMID: 9139146Review.Spanish.