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Table 1 Classification of the selected publications

From: Quantification of ETS exposure in hospitality workers who have never smoked

Category

Number of publications [References]

1. Models for retrospective exposure assessment of ETS at the workplace as well as studies used for the development of these models

22 [51–64, 70–76, 111]

2. Publications dealing with acute exposure assessment especially in the hospitality industry

20 [79, 81–98, 112]

3. Retrospective exposure and risk assessment of diseases associated with ETS exposure in workers of the hospitality industry

4 [13, 99–101]