title: Response to Dr Kintz's letter.
authors.affiliation: Institute of Forensic Sciences, Ministry of Justice, Guangfu Xi Road 1347, Shanghai 200063, PR China.
authors.forename: Min
authors.initials: M
authors.lastname: Shen
authors.forename: Ping
authors.initials: P
authors.lastname: Xiang
mesh_terms: D005260:Female; D006197:Hair / Q000737:chemistry*; D006801:Humans; D008297:Male; D011725:Pyridines / Q000097:blood* / Q000652:urine*
chemical_list: D011725:Pyridines