title: Patch test value.
authors.forename: M H
authors.initials: MH
authors.lastname: Thornhill
authors.forename: R K
authors.initials: RK
authors.lastname: Simmons
authors.forename: M N
authors.initials: MN
authors.lastname: Pemberton
authors.forename: E D
authors.initials: ED
authors.lastname: Theaker
mesh_terms: D003723:Dental Amalgam / Q000009:adverse effects*; D003793:Dental Restoration, Permanent / Q000009:adverse effects*; D003937:Diagnosis, Differential; D006801:Humans; D017676:Lichen Planus, Oral / Q000139:chemically induced*; D017512:Lichenoid Eruptions / Q000175:diagnosis; D010328:Patch Tests / Q000706:statistics & numerical data*; D019233:Retreatment
chemical_list: D003723:Dental Amalgam