1Murphy SL,Xu JQ,Kochanek KD.Number of deaths from 101eadling causes--National Vital Statistics System,United States, 2010[J].JAMA, 2013,309( 15): 1582.
2Global Initiative for Chronic Obstructive Lung Disease. Global strategy for the diagnosis,management and prevention of COPD (GOLD)2013 [OL].http:// www.goldcopd.org.Updated 2013.Ac- cessed February 18, 2013.
3Soriano JB,Lampreeht B.Chronie obstructive pulmonary dis- ease: a worldwide problem [J].Med Clin North Am,2012,96(4): 671-680.
4Cazzola M, Bardaro F, Stirpe E.The role of indacaterol for chron- ic obstructive pulmonary disease ( COPD ) [J].J Thorac Dic, 2013,5(4):559-566.
5Bandaru S, Prasad MH,Jyothy A,et al.Binding modes and phar- maeophoric features of musearinic antagonism and [52 agonism (MABA)conjugates [J].Curr TopMedChem,2013,13 (14): 1650- 1655.
6Barnes PJ, Pauwels RA. Theophylline in asthma: time for reap- praisal[J].Eur Respir J, 1994,7(3):579-591.
