The Journal of the American Osteopathic Association
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Bicycle-related head trauma is a significant source of death, disability, and health-care costs in the United States. Bicycle helmets are effective safety devices that can reduce most of this burden on society. ⋯ This article provides a current summary of state bicycle helmet laws and highlights research that supports the effectiveness and necessity of these laws. The recent trend in safety standards for bicycle helmets is included to give a comprehensive view of bicycle helmet law in the United States.
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Gunshot wounds of the pelvis are not uncommon. Penetrating injuries of the bladder are usually documented by means of a cystogram. ⋯ No extravasation was demonstrated. The authors caution that not all penetrating injuries to the bladder will demonstrate extravasation on a properly performed cystogram.