High altitudes and partial pressure of arterial oxygen in patients with chronic obstructive pulmonary disease - A systematic review and meta-analysis A. Sevik; T. Gaisl; A. Forrer; L. Graf; S. Ulrich; K.E. Bloch; M. Lichtblau; M. Furian;

Clinical usefulness of serum angiotensin converting enzyme in silicosis J. Blanco-Pérez; Á. Salgado-Barreira; S. Blanco-Dorado; M.E. González Bello; A.C. Caldera Díaz; A. Pérez-Gonzalez; A. Pallarés Sanmartín; A. Fernández Villar; F.J. Gonzalez-Barcala;

The safety and feasibility of same-day discharge for the management of patients undergoing pulmonary lobectomy YL Zheng; CC Wang; LD Jin; XY Liang; WS Ye; RS Huang;