TY - GEN AU - Garcia-Pachon,Eduardo AU - Padilla-Navas,Isabel TI - Risk indexes for COPD exacerbations I SN - 0012-3692 PY - 2007///0816 KW - Dyspnea KW - diagnosis KW - Hospitalization KW - Humans KW - Inhalation KW - physiology KW - Predictive Value of Tests KW - Pulmonary Disease, Chronic Obstructive KW - complications KW - Ribs KW - physiopathology KW - Risk Factors KW - Severity of Illness Index N1 - Publication Type: Comment; Letter UR - https://doi.org/10.1378/chest.07-0198 ER -