My lede:

Nearly a third of oncology studies published in influential journals are authored by researchers with financial conflicts of interest, according to a May 11 study published online by the journal Cancer.

Researchers examined more than 1,500 studies published in 2006 in high-impact journals such as Cancer, The Lancet Oncology, and The New England Journal of Medicine, noting when authors disclosed conflicts of interest.

The review found some kind of financial conflict, such as industry funding of research, consulting income or stock ownership, in nearly half the articles presenting the results of prospective clinical trials.

The whole shebang.