‘Secret ties to industry and conflicting interests in cancer research’ includes examples from Sweden, the UK and the USA.  It is critical of a system where consulting firms employ university researchers for industry work, disguising industry links in the income of large departments. It noted that if the industry affiliation is concealed by the scientist, biases from conflicting interests in risk assessments cannot be evaluated and dealt with properly. Furthermore, there is reason to suspect that editors and journal staff may suppress publication of scientific results that are adverse to industry owing to internal conflict of interest between editorial integrity and business needs. Among those criticised was Richard Doll, whose landmark 1981 paper on occupational cancer incidence was commonly cited by government and others as evidence of a low occupational contribution to cancer incidence overall.

Lennart Hardell and others. Secret ties to industry and conflicting interests in cancer research, American Journal of Industrial Medicine, volume 50, issue 3, pages 227-233, 2007 [abstract]