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Cohn-Schwartz E, Levinsky M, Litwin H.Cohn-Schwartz E, et al. Among authors: litwin h.Int Psychogeriatr. 2021 May;33(5):495-504. doi: 10.1017/S1041610220003439. Epub 2020 Nov 6.Int Psychogeriatr. 2021.PMID: 33153511Free PMC article.