Subject recruitment and retention for longitudinal research: practical considerations for a nonintervention model.
| Autor: | Streissguth AP; Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle 98195., Guinta CT |
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| Jazyk: | angličtina |
| Zdroj: | NIDA research monograph [NIDA Res Monogr] 1992; Vol. 117, pp. 137-54. |
| Databáze: | MEDLINE |
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