Author Contributions
Daijiro Nabeya : Conceptualization, data collection, literature review, analysis, investigation, writing–original draft, review, and editing.
Takeshi Kinjo: Conceptualization, data collection, literature review, analysis, investigation, writing–original draft, review, and editing.
Tomoo Kishaba: Study conception and revision of the manuscript.
Jiro Fujita: Study conception and revision of the manuscript.