Proinflammatory and Antiinflammatory Cytokine Levels in Complicated and Noncomplicated Parapneumonic Pleural Effusions - Marchi, Evaldo; Vargas, Francisco S.; Acencio, Milena M.; Sigrist, Rosa M. S.; Biscaro, Marjourie D. A.; Antonangelo, Leila; Teixeira, Lisete R.; Light, Richard W. (Chest, 2012)