1 Ludwig Boltzmann Institute of Osteology at Hanusch Hospital of OEGK and AUVA Trauma Center Meidling, 1st Medical Department, Hanusch Hospital, Vienna, Austria. roland.kocijan@osteologie.lbg.ac.at.
2 1st Medical Department, Hanusch Hospital Vienna, Vienna, Austria. roland.kocijan@osteologie.lbg.ac.at.
3 Medical Faculty of Bone Diseases, Sigmund Freud University, Vienna, Austria. roland.kocijan@osteologie.lbg.ac.at.
4 Ludwig Boltzmann Institute of Osteology at Hanusch Hospital of OEGK and AUVA Trauma Center Meidling, 1st Medical Department, Hanusch Hospital, Vienna, Austria.
5 Austrian Social Health Insurance Fund, Österreichische Gesundheitskasse, Eisenstadt, Austria.
6 1st Medical Department, Hanusch Hospital Vienna, Vienna, Austria.