1 From the Department of Dermatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan E-mail: [email protected].
2 Department of Child Psychosomatic Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
3 Department of Locomotive Pain Center, Division of Rheumatic Diseases Okayama University Hospital, Okayama, Japan.