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Commentary : Extending the boundaries of data collection by mail : Socioeconomic differentials in health.

Thomas-V PERNEGER ; Jean-Francois Etter ; Institute of Social and Preventive Medicine. University of Geneva. Geneva. CHE |

Dans International journal of epidemiology (vol. 30, n° 2, 2001)

[BDSP. Notice produite par INIST 3R0xAHNG. Diffusion soumise à autorisation].

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Article

A comparison of cigarette smokers recruited through the Internet or by mail.

Jean-Francois Etter ; Thomas-V PERNEGER ; Institute of Social and Preventive Medicine. University of Geneva. CHE |

Dans International journal of epidemiology (vol. 30, n° 3, 2001)

[BDSP. Notice produite par INIST-CNRS 1R0x4Vcq. Diffusion soumise à autorisation]. To compare smokers recruited by mail or through the Internet. A questionnaire was mailed to 19 352 inhabitants of Switzerland in 1998, in an effort to enrol them [...]

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