How to Rescue American Football.

Blows to the head damage the brain. American football is a contact/collision sport that produces many injuries, including to the brain. Football has many supporters who cite important redeeming characteristics of the activity.

The brain-to-brain loop concept for laboratory testing 40 years after its introduction.

Forty years ago, Lundberg introduced the concept of the brain-to-brain loop for laboratory testing. In this concept, in the brain of the physician caring for the patient, the first step involves the selection of laboratory tests and the final step is the transmission of the test result to the ordering physician. There are many intermediary steps, some of which are preanalytic, ie, before performance of the test; some are analytic and relate to the actual performance of the test; and others are postanalytic and involve transmission of test results into the medical record.

Low rates of reporting commercial bias by physicians following online continuing medical education activities.

Background: Concerns have been raised about bias in commercially supported continuing medical education (CME) activities, although the data are sparse about whether such bias exists, or if so, its extent.

Methods: Postactivity CME evaluation surveys were analyzed to quantitate reporting rates of bias, overall and by funding source.

Results: 5Of 1,621,647 physicians who participated in online CME activities, 1,064,642 (65.