Occupational Health - Public Health Poster Session

Re: Preclinical Diagnosis of Chronic Obstructive Bronchitis in, Workers Exposed to Occupational Pneumotropic Pollutant -Comments,

Nikolai Matveev

On Wed Dec 9, Lucian Tefas wrote
>We are aking you if the applied questionnaire is compatibile with the European Communitty Questionnaire (British Medical Reasearch Council)?
>We are wondering if there is not a high difference between the number of subjects in Control Group and the number of subjects in Studied group?

By the name of Prof. Penknovich:
Yes, in our research we used the questionnaire based on European Community Questionnaire.
The number of persons in two groups had no significant difference.

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