We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleA novel dried blood spot-LCMS method for the quantification of methotrexate polyglutamates as a potential marker for methotrexate use in children.AuthorsHawwa AF; Albawab A; Rooney M; Wedderburn LR; Beresford MW; McElnay JCPublicationPloS one, 2014, Vol 9, Issue 2, pe89908ISSN1932-6203Publication typearticleDOI10.1371/journal.pone.0089908