Luijendijk, HJ; Koolman, X (May 2012). "The incentive to publish negative studies: how beta-blockers and depression got stuck in the publication cycle". J Clin Epidemiol. 65 (5): 488–92. doi:10.1016/j.jclinepi.2011.06.022. PMID22342262.
Luijendijk, HJ; Koolman, X (May 2012). "The incentive to publish negative studies: how beta-blockers and depression got stuck in the publication cycle". J Clin Epidemiol. 65 (5): 488–92. doi:10.1016/j.jclinepi.2011.06.022. PMID22342262.