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	1.	PTCA (1H-pyrrole-2,3,5-tricarboxylic acid) as a marker for oxidative hair treatment. [electronic resource] by Petzel-Witt, Silvana Meier, Sylvia I Schubert-Zsilavecz, Manfred Toennes, Stefan W Producer: 20180920 In: Drug testing and analysis vol. 10 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Analysis of drugs of abuse in Cerumen - correlation of postmortem analysis results with those for blood, urine and hair. [electronic resource] by Meier, Sylvia I Koelzer, Sarah C Schubert-Zsilavecz, Manfred Toennes, Stefan W Producer: 20180619 In: Drug testing and analysis vol. 9 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Detection of lawsone (2-hydroxy-1,4-naphthoquinone) in henna treated hair. [electronic resource] by Petzel-Witt, Silvana Meier, Sylvia I Schubert-Zsilavecz, Manfred Toennes, Stefan W Producer: 20190417 In: Forensic science international vol. 297 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Analysis of 4-fluoroamphetamine in cerumen after controlled oral application. [electronic resource] by Meier, Sylvia I Petzel-Witt, Silvana Schubert-Zsilavecz, Manfred de Sousa Fernandes Perna, Elizabeth B Theunissen, Eef L Ramaekers, Johannes G Toennes, Stefan W Producer: 20210511 In: Drug testing and analysis vol. 12 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)