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Kallio EL, Öhman H, Hietanen M, Soini H, Strandberg TE, Kautiainen H, Pitkälä KH.Kallio EL, et al. Among authors: pitkala kh.J Am Geriatr Soc. 2018 Apr;66(4):664-670. doi: 10.1111/jgs.15196. Epub 2018 Jan 18.J Am Geriatr Soc. 2018.PMID: 29345724Clinical Trial.