?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Gold%2C+N&rft.aufirst=N&rft.aulast=Gold&rft.atitle=Effectiveness+of+Digital+Interventions+for+Reducing+Behavioral+Risks+of+Cardiovascular+Disease+in+Nonclinical+Adult+Populations%3A+Systematic+Review+of+Reviews&rft.title=Journal+of+Medical+Internet+Research+(JMIR)&rft.volume=23&rft.date=14+May+2021&rft.issue=5&rft.genre=article