Authors: M Galli; P Comfurius; C Maassen; H C Hemker; M H de Baets; P J van Breda-Vriesman; T Barbui; R F Zwaal; E M Bevers Journal: Lancet Date: 1990-06-30 Impact factor: 79.321
Authors: R A Asherson; M A Khamashta; J Ordi-Ros; R H Derksen; S J Machin; J Barquinero; H H Outt; E N Harris; M Vilardell-Torres; G R Hughes Journal: Medicine (Baltimore) Date: 1989-11 Impact factor: 1.889
Authors: R Cervera; M A Khamashta; J Font; G D Sebastiani; A Gil; P Lavilla; I Doménech; A O Aydintug; A Jedryka-Góral; E de Ramón Journal: Medicine (Baltimore) Date: 1993-03 Impact factor: 1.889