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Bosworth, K., Gustafson, D. H., & Hawkins, R. P. (1994). The BARN system: Use and impact of adolescent health promotion via computer. Computers in Human Behavior, 10(4), 467–482. doi:10.1016/0747-5632(94)90041-8 
10.1016/0747-5632(94)90041-8