1. Department of Anatomy and Cell Biology, School of Dental Medicine; University of Pennsylvania; Philadelphia PA USA
2. Department of Oral Biology, School of Dental Medicine, University of Buffalo; State University of New York; Buffalo NY USA
3. Department of Implantology, Shandong Provincial Key Laboratory of Oral Biomedicine; School of Stomatology; Jinan Shandong China
4. Department of Stomatology; Jinan Central Hospital Affiliated to Shandong University; Jinan Shandong China
5. Department of Stomatology; Shandong Provincial Hospital Affiliated to Shandong University; Jinan Shandong China
6. Department of Physiology, School of Medicine; University of Pennsylvania; Philadelphia PA USA
7. Department of Pathology; University of Alabama at Birmingham; Birmingham AL USA
8. Department of Medicine, Endocrine Research Unit; Mayo Clinic; Rochester MN USA
9. The Penn Center for Musculoskeletal Disorders, School of Medicine; University of Pennsylvania; Philadelphia PA USA