Screening for gonorrhea and chlamydia by DNA amplification in adolescents attending middle school health centers. Opportunity for early intervention. - Burstein GR; Waterfield G; Joffe A; Zenilman JM; Quinn TC; Gaydos CA; Burstein, G R; Waterfield, G; Joffe, A; Zenilman, J M; Quinn, T C; Gaydos, C A (Sexually Transmitted Diseases, 1998)