The Relative Efficacy of Seven Skeletal Muscle Relaxants. An Analysis of Data From Randomized Studies.

Background: Low back pain (LBP) causes 2.6 million visits to U.S.

Predicting the Transition to Chronic Pain 6 Months After an Emergency Department Visit for Acute Pain: A Prospective Cohort Study.

Background: Acute pain can transition to chronic pain, a potentially debilitating illness.

Objective: We determined how often acute pain transitions to chronic pain among patients in the emergency department (ED) and whether persistent pain 1 week after the ED visit was associated with chronic pain.

Methods: An observational cohort study conducted in two EDs.