1. Laboratory of Osteoblast Biology and Pathology (P.J.M.), Institut National de la Santé et de la Recherche Médicale Unité 606, Paris F-75475, France;
2. University Paris Diderot (P.J.M.), Unité Mixte de Recherche 606, Paris F-75475, France;
3. Department of Endocrinology and Metabolism (M.K.), University Hospital of Odense, DK-5000 Odense, Denmark;
4. Department of Stem Cell Unit (M.K.), Department of Anatomy, College of Medicine, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia