Bone Mineral Density Workshops 1995, 1997, 1998, 2000. Bath conference 1998, Workshop

ASBMR 1998, Berliner Ärztetag 1996, 1997, Deutscher Osteologiekongreß 1998, World Spine Congress 2000, Knochen-Muskeln- Neue Welten 2000

Eingeladener Redner: Taipei conference of orthopaedics 1996, Deutsche Menopausengesellschaft 2000, Menopause-Andropause Kongreß 2001, Osteologie Kongreß 11/2001 Olomouc

International conference on calcium regulating hormones (ICCRH) 1995, World congress on osteoporosis 1996, 2000, European Congress on osteoporosis 1998, Conference on Calcified Tissue 1998, Annual meetings of the American society of Bone and Mineral Research (ASBMR) 1995, 1996, 1997, 1998, 1999, 2000, 2003