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2Published 1978Subjects: “...Longitudinal method....”
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6Published 2021Subjects: “...Longitudinal method....”
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11Published 2008Subjects: “...Longitudinal method Handbooks, manuals, etc....”
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13Published 1980Subjects: “...Longitudinal method....”
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14Published 1979Subjects: “...Longitudinal method Congresses....”
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18Published 2000Subjects: “...Longitudinal method....”
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