AU  - Tabak YP, Sun X, Johannes RS, Gupta V, Shorr AF
TI  - Mortality and need for mechanical ventilation in acute exacerbations of chronic obstructive pulmonary disease: Development and validation of a simple risk score
PT  - JOUR
DP  - 2009
TA  - Archives of Internal Medicine
pages = {1595-1602},
VI  - 169
IP  - 17
AID  - 10.1001/archinternmed.2009.270 [doi]
4100  - http://dx.doi.org/10.1001/archinternmed.2009.270
SO  - Archives of Internal Medicine September 28, 2009 169(17):1595