Can non-US residents become PCORI Reviewers?

PCORI will primarily recruit merit reviewers who are U.S. residents as a way to effectively manage the costs of our Merit Review process. We will invite non-U.S. based, North American reviewers (from Canada, Mexico, Puerto Rico, or the U.S. Virgin Islands) to serve during a review cycle if they have expertise that we do not currently have represented in our database of available reviewers. We will not invite any reviewers located outside of North America to review for PCORI.