2020 Published by Elsevier Espa ̃na, S.L.U. on behalf ofAsociaci ́on Espa ̃nola de Pediatr ́ıa. This is an open access articleunder the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).(http://creativecommons.org/licenses/by-nc-nd/4.0/)
Bestelakorik adierazi ezean, itemaren baimena horrela deskribatzen da:2020 Published by Elsevier Espa ̃na, S.L.U. on behalf ofAsociaci ́on Espa ̃nola de Pediatr ́ıa. This is an open access articleunder the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).(http://creativecommons.org/licenses/by-nc-nd/4.0/)