Author C. Christiansen V. Ehrenstein U. Heide-J\orgensen S. Skovbo H. N\orrelund H. Sorensen L. Li S. Jick Year of Publication 2015 DOI 10.1136/bmjopen-2015-008531 DOIGoogle ScholarBibTeXEndNote X3 XMLEndNote 7 XMLEndnote taggedMarcRIS
