Author Contributions
Atsumasa Kurozumi: directly involved in patient care or have undertaken
or interpreted patient investigation, and drafted the article or revised
it critically for important intellectual content
Hisao Hara: drafted the article or revised it critically for important
intellectual content
Ran Nagai: directly involved in patient care or have undertaken or
interpreted patient investigation
Yukio Hiroi: drafted the article or revised it critically for important
intellectual content