Purchase Short-Term Access

How Much Did Biases in the Study of Chronic Obstructive Pulmonary Disease Medications and Mortality Affect the Outcome?

Samy Suissa, PhD; Pierre Ernst, MD, MSc

Annals of Internal Medicine 2009;150:425-426. doi:10.7326/0003-4819-150-6-200903170-00017

Purchase Online access to this article for 24 hours

Annals of Internal Medicine

Forgot Your Password?

to gain full access to the content and tools.

Learn more about subscription options

Forgot your password?

Enter your username and email address. We'll send you a reminder to the email address on record.

Username* (Required)

Email Address* (Required)