About the Authors

Hiroaki Nagano

Contributed equally to this work with: Hiroaki Nagano, Tomoo Kishaba

hiroakinoko322violin@gmail.com

Current address: 281 Miyazato, Uruma-City, Okinawa Pref, Japan

Affiliation Department of Respiratory Medicine, Okinawa Chubu Hospital, Okinawa, Japan

Tomoo Kishaba

Contributed equally to this work with: Hiroaki Nagano, Tomoo Kishaba

Affiliation Department of Respiratory Medicine, Okinawa Chubu Hospital, Okinawa, Japan

Yuichirou Nei

‡ These authors also contributed equally to this work.

Affiliation Department of Respiratory Medicine, Okinawa Chubu Hospital, Okinawa, Japan

Shin Yamashiro

‡ These authors also contributed equally to this work.

Affiliation Department of Respiratory Medicine, Okinawa Chubu Hospital, Okinawa, Japan

Hiroaki Takara

‡ These authors also contributed equally to this work.

Affiliation Department of Radiology, Okinawa Chubu Hospital, Okinawa, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: HN TK. Data curation: HN TK. Formal analysis: HN TK. Investigation: HN SY YN HT. Methodology: HN TK. Project administration: HN TK. Resources: HN TK. Software: HN TK. Supervision: HN TK. Visualization: HN. Writing – original draft: HN. Writing – review & editing: HN TK SY YN HT.