New Classifications of COPD Severity Based on Impulse Oscillometry: A SAIO Grade Base on ECOPD Cohort in China Lifei Lu; Qi Wan; Gaoying Tang; Fan Wu; Zhishan Deng; Jieqi Peng; Cuiqiong Dai; Kunning Zhou; Xiaohui Wu; Shuqing Yu; Yongqing Huang; Changli Yang; Shengtang Chen; Pixin Ran; Yumin Zhou;

Five-Repetition Sit-to-Stand Test as Predictor of Mortality in High Risk COPD Patients Roberto Bernabeu-Mora; Elisa Valera-Novella; Elodia Teresa Bernabeu-Serrano; Juan José Soler-Cataluña; Myriam Calle-Rubio; Francesc Medina-Mirapeix;

Sex-Differences in Alpha-1 Antitrypsin Deficiency: Data From the EARCO Registry Hilal Ersöz; María Torres-Durán; Alice M. Turner; Hanan Tanash; Carlota Rodríguez García; Angelo Guido Corsico; José Luis López-Campos; Marc Miravitlles; Christian F. Clarenbach; Kenneth R. Chapman; José M. Hernández Pérez; Catarina Guimarães; Eva Barto¿ovská; Timm Greulich; Miriam Barrecheguren; Andreas Rembert Koczulla; Philipp Höger; Arturo Olivares Rivera; Felix Herth; Franziska C. Trudzinski;