1. Pharmacology and Toxicology; Center for Molecular Signaling (PZMS); Saarland University School of Medicine; Homburg Germany
2. Department of Internal Medicine; Laboratory for Calcium and Bone Metabolism; Erasmus MC; Rotterdam Netherlands
3. Institute of Pharmacology; Heidelberg University; Heidelberg Germany
4. Transgenic Technologies; Center for Molecular Signaling (PZMS); Saarland University School of Medicine; Homburg Germany