?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=D&rft.au=Moreno-Agostino%2C+D&rft.aulast=Moreno-Agostino&rft.issue=10&rft.date=11+October+2021&rft.title=BMJ+Open&rft.volume=11&rft.atitle=Measuring+functional+ability+in+healthy+ageing%3A+a+nationwide+cross-sectional+survey+in+the+Philippine+older+population&rft.genre=article