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Titlebook: Longitudinal Research; Methods and Uses in Fini Schulsinger,Sarnoff A. Mednick,Joachim Knop Book 1981 Martinus Nijhoff Publishing 1981 Des

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The Value of Birth Cohort Studiess of these encounters, which help to determine its patterns of illness and levels of achievement. The entry of each new cohort provides potentialities for change; the extent to which it shows or fails to show change reflects the success or failure of our policies and our services and the dynamic state of our society.
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Psychiatric Epidemiological Studies in Icelandd limitations since they involve the collection of both recorded data and data memorized by a number of individuals as well as the verification of the latter. The advantage of this method is that health information is collected on every member of the cohort during his or her life span from all available sources.
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A Prospective Longitudinal Study of the Relationship Between Obstetrical Factors and CNS Damageence of cerebral palsy is about two per thousand, and more than half the cases are of perinatal origin (Woods, 1976). If the concept of a “continuum of reproductive casualty” (Lilienfeld and Pasamanick, 1955) is true, then lowering perinatal mortality may well lead to a rise in the number of childre
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