1. Center for Bone Research, Departments of Internal Medicine (S.H.W., M.K.L., N.A., C.O.)
2. Rheumatology and Inflammation Research (C.J., A.K., C.H., H.C.), Institute of Medicine, Gothenburg University, 413 45 Gothenburg, Sweden;
3. Department of Biosciences and Nutrition at NOVUM (J.I., J.-Å.G., K.P.), Karolinska Institute, SE-141 04 Huddinge, Sweden;
4. Hubrecht Laboratory (P.T.v.d.S.), Netherlands Institute for Developmental Biology, 3584 CT Utrecht, The Netherlands