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The General Health Questionnaire: how many items are really necessary in population surveys?
Jacobsen, B. K., Hasvold, T., Høyer, G., Hansen, V.Volume:
25
Language:
english
Journal:
Psychological Medicine
DOI:
10.1017/s0033291700037442
Date:
September, 1995
File:
PDF, 389 KB
english, 1995