Affiliation: | 1. Pleural Diseases Unit, Department of Internal Medicine, Arnau de Vilanova University Hospital, Biomedical Research Institute of Lleida, , Lleida, Spain;2. Pleural Diseases Unit, Laboratory Medicine, Arnau de Vilanova University Hospital, Biomedical Research Institute of Lleida, , Lleida, Spain;3. Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, , Nashville, Tennessee, USA |