| http://www.w3.org/ns/prov#value | - Previous studies have reported that weapon carrying, use of violence, illicit drug use, and other risk and problem behaviors cluster among adolescents.5- 7,12,17- 19,22,23 DuRant et al7 recently reported that among high school students, male sex and the frequencies of fighting, being a victim of a threat or injury, alcohol and cigarette use, and being offered or sold an illicit drug while on schoo
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