title: Commentary to Gebel 2012: a quantitative review should apply meta-analytical methods.
abstract: Gebel (2012) performed a quantitative review of inhalation rat studies on the association of granular biopersistent dust exposures and lung cancer risk. The analytical methods applied are unreliable because they do not fulfil the requirements of current meta-analytical methods.
authors.affiliation: Institute for Occupational Epidemiology and Risk Assessment of Evonik Industries AG, Rellinghauser Straße 1-11, 45128, Essen, Germany. peter.morfeld@evonik.com
authors.forename: Peter
authors.initials: P
authors.lastname: Morfeld
mesh_terms: D000393:Air Pollutants / Q000633:toxicity*; D000818:Animals; D002273:Carcinogens / Q000633:toxicity*; D005260:Female; D006801:Humans; D008297:Male; D049329:Nanostructures / Q000633:toxicity*; D052638:Particulate Matter / Q000633:toxicity*
chemical_list: D000393:Air Pollutants; D002273:Carcinogens; D052638:Particulate Matter