There's a big difference between what's presented at a "major meeting" and what can be contained in a NEJM article - AMRN only has something like 10-12 mins to present, no way they can get into all of the TEs and subgroups in that amount of time. Dunno if you've ever done a presentation like this, but I have (in a different sector), and time flies by so fast you can end up rushing through the last few slides - there's a dude with a timer sitting near you giving you "2 mins left", "1 mins left", then "time is over, STFU" - even practicing and doing dry runs doesn't 100% prepare you for the actual presentation. Not going to do the legwork for you, but go to the NEJM website and look as the rules for what they require for papers to be accepted for publication - having new data never presented before is one of them - doesn't matter if the PE and SEs have been briefly mentioned at the AHA, new unreleased details is all they need. I think there's a 3 min Q&A session after the AHA gig, and I expect them to say "we will disclose the answer to that question in an upcoming research paper" to anything not presented.