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Cohen-Mansfield J, Werner P, Marx MS.Cohen-Mansfield J, et al. Among authors: marx ms.J Am Geriatr Soc. 1990 Jul;38(7):785-92. doi: 10.1111/j.1532-5415.1990.tb01470.x.J Am Geriatr Soc. 1990.PMID: 2370397