Emergency room visits caused by underage drinking are disturbing at any level. But public health officials warn that the usual number of such injuries nearly double during the July 4 holiday weekend. Group parties, combined with too little supervision, equal serious injury for too many teens, public health officials say. A study by the Substance Abuse and Mental Health Services Administration (SAMHSA) found that underage drinking-related visits to emergency rooms are 87 percent higher during the July 4 weekend than they are for an average day during the rest of July.
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