Empyema space rate: a quantitative predictor of postoperative drainage duration after surgery for acute empyema. - Tsukamoto Y; Nakada T; Tsubouchi S; Watanabe Y; Suyama Y; Arakawa S; Shibazaki T; Kinoshita T; Mori S; Ohtsuka T (General thoracic and cardiovascular surgery, 2026)