From the Departments of *Endocrinology, Metabolism and Nephrology and
†Orthopaedic Surgery, Kochi Medical School, Kochi University, Nankoku, Japan.
The authors declare no conflict of interest.
Correspondence: Taro Horino, MD, PhD, Department of Endocrinology, Metabolism and Nephrology, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku, Kochi 783-8505, Japan. E-mail: firstname.lastname@example.org.