Clinical and Social Characterization of Patients Hospitalized for COPD Exacerbation Using Machine Learning Tools Manuel Casal-Guisande; Cristina Represas-Represas; Rafael Golpe; Alberto Fernández-García; Almudena González-Montaos; Alberto Comesaña-Campos; Alberto Ruano-Raviña; Alberto Fernández-Villar;

Impaired Ventilatory Efficiency Identifies High-Risk Mild-to-Moderate Chronic Obstructive Pulmonary Disease Zhishan Deng; Wu Fan; Wan Qi; Cuiqiong Dai; Lu Lifei; Zihui Wang; Kunning Zhou; Wu Xiaohui; Gaoying Tang; Huajing Yang; Jieqi Peng; Suyin Huang; Guannan Cai; Wu Fangyan; Junfeng Lin; Xiaoyu Wang; Changli Yang; Yongqing Huang; Rongchang Chen; Nanshan Zhong; Yumin Zhou; Pixin Ran;

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;