AU - Sin DD, Man S TI - A curious case of β-blockers in chronic obstructive pulmonary disease PT - JOUR DP - 2010 TA - Archives of Internal Medicine pages = {849-850}, VI - 170 IP - 10 AID - 10.1001/archinternmed.2010.97 [doi] 4100 - http://dx.doi.org/10.1001/archinternmed.2010.97 SO - Archives of Internal Medicine May 24, 2010 170(10):849