1. National Evidence-Based Healthcare Collaborating Agency, Seoul, Korea.
2. College of Nursing, Institute of Health Science Research, Inje University, Gimhae, Korea.
3. Department of Internal Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea.
4. Division of Rheumatology, Department of Internal Medicine, Hallym University Sacred Heart Hospital, Anyang, Korea.
5. Institute for Skeletal Aging, Hallym University, Chuncheon, Korea.