title: False-negative patch test reactions due to a lower concentration of patch test substance than declared.
authors.affiliation: Section of Dermatology, Finnish Institute of Occupational Health, Helsinki.
authors.forename: L
authors.initials: L
authors.lastname: Kanerva
authors.forename: T
authors.initials: T
authors.lastname: Estlander
authors.forename: R
authors.initials: R
authors.lastname: Jolanki
authors.forename: K
authors.initials: K
authors.lastname: Alanko
mesh_terms: D000328:Adult; D017449:Dermatitis, Allergic Contact / Q000175:diagnosis* / Q000209:etiology; D009783:Dermatitis, Occupational / Q000175:diagnosis / Q000209:etiology; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D008297:Male; D008768:Methylmethacrylates / Q000009:adverse effects*; D010328:Patch Tests / Q000592:standards*
chemical_list: D008768:Methylmethacrylates