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Cruz García M, de José I, Hawkins F, Bates I, Martínez Zapico R, Ferreira A, Fontán G.Cruz García M, et al. Among authors: martinez zapico r.Med Clin (Barc). 1995 Oct 14;105(12):446-9.Med Clin (Barc). 1995.PMID: 7490934Spanish.
Lajo Plaza A, del Castillo Martín F, Martínez Zapico R.Lajo Plaza A, et al.An Esp Pediatr. 1990 Jan;32(1):20-3.An Esp Pediatr. 1990.PMID: 2158261Spanish.