Peyman H, Esterberg E, Obermuller D, Bartsch R. Bone evaluation study-2: update on the epidemiology of osteoporosis in Germany. Dtsch Arztebl Int. 2024 Apr 9;19(1):26. doi: 10.1007/s11657-024-01380-9
Groenwold R, Uddin M, Roes K, de Boer A, Rivero-Ferrer E, Martin E, Gatto N, Klungel O. Instrumental variable analysis in randomized trials with non-compliance and observational pharmacoepidemiologic studies. OA Epidemiology. 2014 May 9;2(1):9.