?url_ver=Z39.88-2004&rft_id=doi%3A10.1186%2Fs40359-025-02622-2&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Mejia&rft.aufirst=Christian+R.&rft.au=Mejia%2C+Christian+R.&rft.issue=1&rft.atitle=Fear+and+concern+about+the+outbreak+of+a+world+war%3A+validation+of+an+instrument+in+eight+Latin+American+countries+(Third+World+War+scale)&rft.volume=13&rft.title=BMC+Psychology&rft.date=2025&rft.issn=2050-7283&rft.genre=article