Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleUnderexplored Heterogeneity and Publication Bias for the Electronic Cigarette and Marijuana Use Association.AuthorsWang, Guan; Wang, Yang; Niu, WenquanSubjectsMEDICAL marijuana; ELECTRONIC cigarettes; ADOLESCENCE; ADULTSPublicationJAMA Pediatrics, 2020, Vol 174, Issue 5, p504ISSN2168-6203Publication typeLetterDOI10.1001/jamapediatrics.2019.6080