?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Siddharthan&rft.aufirst=Trishul&rft.au=Siddharthan%2C+Trishul&rft.volume=12&rft.issue=9&rft.atitle=Assessing+the+prevalence+and+impact+of+preserved+ratio+impaired+spirometry+in+low-income+and+middle-income+countries%3A+a+post-hoc+cross-sectional+analysis&rft.date=September+2024&rft.pages=e1498-e1505&rft.title=The+Lancet+Global+Health&rft.genre=article