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	1.	Protoporphyrin IX-accumulation in human tumor cells following topical ALA- and h-ALA-application in vivo. [electronic resource] by Zenzen, Volker Zankl, Heinrich Producer: 20040203 In: Cancer letters vol. 202 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Reduced exposure evaluation of an Electrically Heated Cigarette Smoking System. Part 2: Smoke chemistry and in vitro toxicological evaluation using smoking regimens reflecting human puffing behavior. [electronic resource] by Zenzen, Volker Diekmann, Joerg Gerstenberg, Birgit Weber, Susanne Wittke, Sandra Schorp, Matthias K Producer: 20130408 In: Regulatory toxicology and pharmacology : RTP vol. 64 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Automation of the in vitro micronucleus and chromosome aberration assay for the assessment of the genotoxicity of the particulate and gas-vapor phase of cigarette smoke. [electronic resource] by Roemer, Ewald Zenzen, Volker Conroy, Lynda L Luedemann, Kathrin Dempsey, Ruth Schunck, Christian Sticken, Edgar Trelles Producer: 20160523 In: Toxicology mechanisms and methods vol. 25 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Reduced exposure evaluation of an Electrically Heated Cigarette Smoking System. Part 8: Nicotine bridging--estimating smoke constituent exposure by their relationships to both nicotine levels in mainstream cigarette smoke and in smokers. [electronic resource] by Urban, H-Jörg Tricker, Anthony R Leyden, Donald E Forte, Natasa Zenzen, Volker Feuersenger, Astrid Assink, Mareike Kallischnigg, Gerd Schorp, Matthias K Producer: 20130408 In: Regulatory toxicology and pharmacology : RTP vol. 64 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)