https://elifesciences.org/articles/13323
Authors. Fang, F. C., Bowen, A. & Casadevall, A
Venue. eLife
How the Institute flags it
frontier 1 time established 1 time
This source carries more than one flag across the corpus. That is not an inconsistency to resolve: the same work can be established evidence for one claim and frontier evidence for another, and the flag belongs to the use rather than to the source.