https://www.sciencedaily.com/releases/2018/08/180830112940.htm > The new findings will be published as a research letter in the journal JAMA Oncology. > Authors of the research letter examined the federal Open Payments Database to determine payments to oncologists who authored studies in high-impact journals. They then cross-checked the information to determine whether the authors properly disclosed the funding when the results of their clinical trials were published in scientific journals. Depending on the journal, almost half of total funding was not disclosed.