Ethical Approval
Osteoporosis
OSTEOPOROSIS
This study was registered at the University Hospital Medical Information Network- Clinical Trials Registry (UMIN-CTR) under the identification number UMIN000005433; date: April 13, 2011. The protocol was approved by the Central Ethical Committee for Adequate Treatment of Osteoporosis group (Chairman Dr. Rikushi Morita) and was reviewed by the institutional review board of each participating institution. The trial was conducted in accordance with the principles of the Declaration of Helsinki.