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Methods of the International Tobacco Control (ITC) China Survey
This paper describes the design features, data collection methods and analytical strategies of the ITC China Survey, a prospective cohort study of 800 adult smokers and 200 adult non-smokers in each of six cities in China . In addition to features and methods which are common to ITC surveys in other...
Autores principales: | , , , , , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
BMJ Group
2009
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2975999/ https://www.ncbi.nlm.nih.gov/pubmed/19648134 http://dx.doi.org/10.1136/tc.2009.029900 |