Open Access Open Badges Study protocol

Protocol of a randomized controlled trial of the Tobacco Tactics website for operating engineers

Sonia A Duffy*, David L Ronis, Caroline Richardson, Andrea H Waltje, Lee A Ewing, Devon Noonan, Oisaeng Hong and John D Meeker

BMC Public Health 2012, 12:335  doi:10.1186/1471-2458-12-335

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