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Design and validation of a self-administered test to assess bullying (bull-M) in high school Mexicans: a pilot study

Arnulfo Ramos-Jimenez*, Abraham Wall-Medrano, Oscar Esparza-Del Villar and Rosa P Hernández-Torres

BMC Public Health 2013, 13:334  doi:10.1186/1471-2458-13-334

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