We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleSecondary Hyperparathyroidism, Vitamin D Sufficiency, and Serum Calcium 5 Years After Gastric Bypass and Duodenal Switch.AuthorsHewitt, Stephen; Søvik, Torgeir; Aasheim, Erlend; Kristinsson, Jon; Jahnsen, Jørgen; Birketvedt, Grethe; Bøhmer, Thomas; Eriksen, Erik; Mala, TomPublicationObesity Surgery, 2013, Vol 23, Issue 3, p384ISSN0960-8923Publication typearticleDOI10.1007/s11695-012-0772-3