Dear @RA2DREAMChallengeParticipants, The RA2 manuscript has been published in JAMA Network Open. You can find it on [PubMed here](https://pubmed.ncbi.nlm.nih.gov/36036935/). Thank you once again for joining this DREAM Challenge! We really enjoyed running this challenge and we hope you enjoyed participating in it. Want to participate in more challenges? Please check out the [DREAM Website](https://dreamchallenges.org/open-challenges/) to see the current list of open challenges. Cheers, Robert Allaway on behalf of the @RA2DREAMOrganizers