The Pittsburgh Sleep Quality Index.
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Smyth
D000368:Aged; D019985:Benchmarking; D015577:Geriatric Assessment; D006801:Humans; D009730:Nursing Assessment / Q000379:methods*; D015203:Reproducibility of Results; D012893:Sleep Wake Disorders / Q000175:diagnosis*; D011795:Surveys and Questionnaires / Q000592:standards*