title: Voluntary drug testing for high school students.
authors.affiliation: San Pedro Peninsula Hospital, CA.
authors.forename: R R
authors.initials: RR
authors.lastname: Ellis
mesh_terms: D000293:Adolescent; D003159:Community-Institutional Relations; D006745:Hospital Bed Capacity, 300 to 499; D006801:Humans; D007755:Laboratories, Hospital / Q000639:trends*; D015141:Los Angeles; D013177:Sports; D013334:Students; D015813:Substance Abuse Detection; D019966:Substance-Related Disorders / Q000517:prevention & control*