JPM accepts submissions of papers posted on preprint servers. Authors should disclose the preprint's digital object identifier (DOI) in the cover letter or title page during submission. Authors should not post an updated version of the paper to a preprint server during the peer review process. If accepted, update the preprint with a link to the published article in JPM, including the DOI. Authors are strongly recommended to cite the published article in JPM rather than the preprint in future journal submissions.