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The etiology and maintenance of dependency in the elderly: Three phases of operant research |
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| Authors: | Margret M Baltes |
| Institution: | 1. International Research Training Group “Adaptive Minds”, Saarland University, Campus A1 7, 66123 Saarbrücken, Germany;2. Department of Psychology, Saarland University, Campus A2 4, 66123 Saarbrücken, Germany |
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