Media type: E-Article Title: Risk of Malnutrition, Trace Metal, and Vitamin Deficiency Post Roux-en-Y Gastric Bypass—a Prospective Study of 20 Patients with BMI Contributor: Billeter, Adrian T.; Probst, Pascal; Fischer, Lars; Senft, Jonas; Kenngott, Hannes G.; Schulte, Thilo; Clemens, Gabriella; Zech, Ulrike; Büchler, Markus W.; Nawroth, Peter P.; Müller-Stich, Beat P. imprint: Springer Science and Business Media LLC, 2015 Published in: Obesity Surgery Language: English DOI: 10.1007/s11695-015-1676-9 ISSN: 0960-8923; 1708-0428 Keywords: Nutrition and Dietetics ; Endocrinology, Diabetes and Metabolism ; Surgery Origination: Footnote: