Interpleural distance predicts persistent air leak after initial primary spontaneous pneumothorax - Akamine, Takaki; Kometani, Takuro; Hashinokuchi, Asato; Akamine, Shinji; Shikada, Yasunori; Wataya, Hiroshi (Journal of Thoracic Disease; Vol 12, No 5 (May 28, 2020): Journal of Thoracic Disease, 2020)