3Brubacher S, Gobel BH. Use of the Pleurx Pleural Catheter for the management of malignant pleural effusions. Clin J Oncol Nurs 2003; 7 (1): 35 - 8
4Taube C, Lehnigk B, paasch K, et al. Factor analysis of changes in dyspnea and lung parameters after bronchodilation in chronic obstructive pulmonary disease. AM J Respir Crit Care Med 2000; 162 (1): 216 - 20
5Wickham R. Dyspnea: recognizing and managing an invisible problem. Oncol Nurs Forum 2002;29(6): 925 -33