1. Departments of Orthopedic Surgery and Basic Medical Science (L.-J.Z., Y.-J.L., J.H., H.-W.D.), School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri 64108
2. Osteoporosis Research Center (L.-J.Z., P.-Y.L., R.R.R.), Creighton University Medical Center, Omaha, Nebraska 68131
3. Laboratory of Molecular and Statistical Genetics (H.-W.D.), College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, People’s Republic of China
4. The Key Laboratory of Biomedical Information Engineering of Ministry of Education and Institute of Molecular Genetics (H.-W.D.), School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 710049, People’s Republic of China