Presentation of research findings during, or publication of an abstract for, a bona fide scientific or clinical meeting does not preclude consideration of the study for publication in JAMA. Authors who present information contained in a manuscript that is under consideration by JAMA during scientific or clinical meetings should not distribute complete reports (ie, copies of manuscripts) or full data presented as tables and figures to conference attendees or journalists. Publication of abstracts in print and online conference proceedings, as well as posting of slides or videos from the scientific presentation on the meeting Web site, is acceptable. However, for manuscripts under consideration by JAMA, publication of full reports in proceedings or online, issuing detailed news releases reporting the results of the study, or participation in formal news conferences will jeopardize chances for publication of the submitted manuscript in JAMA. In contrast, news media reports based on coverage that occurs during the usual course of a standard presentation of a scientific or clinical paper does not preempt a manuscript from consideration for publication. However, authors presenting papers at such meetings are advised to refrain from providing additional information to reporters beyond that covered during the course of their presentation and exchange with meeting attendees.