Association between subjective well-being and sleep among the elderly in Japan
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PII: S1389-9457(07)00076-7
doi:10.1016/j.sleep.2007.02.007
© 2007 Elsevier B.V. All rights reserved.
PII: S1389-9457(07)00076-7
doi:10.1016/j.sleep.2007.02.007
© 2007 Elsevier B.V. All rights reserved.