3 tips sobre sol en la montaña
https://pesquisa.bvsalud.org/portal/resource/pt/lil-77122
https://emedicine.medscape.com/article/799025-overview#a0104
https://revistaseug.ugr.es/index.php/ars/article/view/5029
http://scielo.isciii.es/scielo.php?pid=S1131-57682003000300005&script=sci_arttext&tlng=pt
https://www.desnivel.com/excursionismo/protegerte-del-sol-para-no-terminar-quemado/
https://blogs.forumsport.com/montana/como-protegerte-del-sol-en-la-montana/