Outcome studies

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MEDLINE Watson RJ, Richardson PH. Accessing the literature on outcome studies in group psychotherapy: the sensitivity and precision of Medline and PsycINFO bibliographic database searching. British Journal of Medical Psychology 1999;72(1):127-34. [Outcome studies in group psychotherapy] [Ovid]
PsycINFO Watson RJ, Richardson PH. Accessing the literature on outcome studies in group psychotherapy: the sensitivity and precision of Medline and PsycINFO bibliographic database searching. British Journal of Medical Psychology 1999;72(1):127-34. [Outcome studies in group psychotherapy] [Ovid]
PubMed Terwee C B, Jansma E P, Riphagen I I, de Vet H C W. Development of a methodological PubMed search filter for finding studies on measurement properties of measurement instruments. Quality of Life Research 2009 DOI 10.1007/s11136-009-9528-5.