Fig 1.
The selection process for the 2 samples included in this study.
Table 1.
General characteristics of the included journals.
Table 2.
General characteristics of the included publications.
Table 3.
Characteristics of the peer review process.
Table 4.
Funding of the included studies.
Table 5.
Declaration of conflict of interest of authors, peer reviewers, and editors.
Fig 2.
Commenting on own and other’s COI by authors, peer reviewers, and editors.
Table 6.
Commenting on study funding and conflicts of interest by authors, peer reviewers and editors.