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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 [5164, 7076, 111]
2. Publications dealing with acute exposure assessment especially in the hospitality industry 20 [79, 8198, 112]
3. Retrospective exposure and risk assessment of diseases associated with ETS exposure in workers of the hospitality industry 4 [13, 99101]