Authors: C Ramos-Remus; A S Russell; A Gomez-Vargas; A Hernandez-Chavez; W P Maksymowych; J I Gamez-Nava; L Gonzalez-Lopez; A García-Hernández; E Meoño-Morales; R Burgos-Vargas; M E Suarez-Almazor Journal: Ann Rheum Dis Date: 1998-07 Impact factor: 19.103