RT Journal Article SR Electronic T1 Evaluation of effectiveness of peer education on smoking behavior among high school students JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 635 OP 637 DO 10.15537/smj.2018.6.22888 VO 39 IS 6 A1 Yoo, Hyo H. A1 Lee, Sang Y. YR 2018 UL http://smj.org.sa/content/39/6/635.abstract AB