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de Blas A, Martín-Frías M, Toledano M, Gomez M, Corbatón J, Yturriaga R.de Blas A, et al.An Pediatr (Barc). 2013 Sep;79(3):189-90. doi: 10.1016/j.anpedi.2012.08.007. Epub 2012 Oct 22.An Pediatr (Barc). 2013.PMID: 23085318Free article.Spanish.No abstract available.
Martín-Frías M, Alvarez MA, Yelmo R, Alonso M, Barrio R.Martín-Frías M, et al.An Pediatr (Barc). 2014 Dec;81(6):389-92. doi: 10.1016/j.anpedi.2013.10.048. Epub 2013 Dec 13.An Pediatr (Barc). 2014.PMID: 24333102Free article.Spanish.