title: A false positive for clozapine using high-pressure liquid chromatography with ultraviolet detection.
authors.affiliation: Pharmacy Service, Red de Salud Mental de Araba, C/alava 43, 01006 Vitoria-Gasteiz, Araba, Spain.
authors.forename: Unax
authors.initials: U
authors.lastname: Lertxundi
authors.affiliation: Communitary Rehabilitation Centre, Red de Salud Mental de Araba, C/reyes católicos 6, 01006 Vitoria-Gasteiz, Araba, Spain.
authors.forename: Margarita H
authors.initials: MH
authors.lastname: Manrique
authors.affiliation: Pharmacy Service, Hospital Alto Deba, Avda, Nafarroa 16, 20500 Arrasate Gipuzkoa, Spain.
authors.forename: Saioa D
authors.initials: SD
authors.lastname: Echaburu
authors.affiliation: Reference Laboratory S.A., Barcelona, Spain.
authors.forename: Manuel
authors.initials: M
authors.lastname: Martinez