title: Seronegative antiphospholipid syndrome.
authors.affiliation: Lupus Research Unit, The Rayne Institute, St Thomas' Hospital, London, UK.
authors.forename: G R V
authors.initials: GR
authors.lastname: Hughes
authors.forename: M A
authors.initials: MA
authors.lastname: Khamashta
mesh_terms: D017152:Antibodies, Antiphospholipid / Q000097:blood; D016736:Antiphospholipid Syndrome / Q000175:diagnosis*; D019411:Clinical Laboratory Techniques / Q000592:standards; D003951:Diagnostic Errors; D006801:Humans; D007118:Immunoassay / Q000592:standards
chemical_list: D017152:Antibodies, Antiphospholipid