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Determinants of subject visit participation in a prospective cohort study of HTLV infection
BACKGROUND: Understanding participation in a prospective study is crucial to maintaining and improving retention rates. In 1990–92, following attempted blood donation at five blood centers, we enrolled 155 HTLV-I, 387 HTLV-II and 799 HTLV seronegative persons in a long-term prospective cohort. METHO...
Autores principales: | , , , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2009
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2660365/ https://www.ncbi.nlm.nih.gov/pubmed/19284565 http://dx.doi.org/10.1186/1471-2288-9-19 |