Hernández-Cruz, Blanca Costs of the standard rheumatology care in active rheumatoid arthritis patients seen in a tertiary care center in Mexico City. [electronic resource] - Reumatologia clinica May 2006 - 124-30 p. digital Publication Type: Journal Article ISSN: 1699-258X Standard No.: 10.1016/S1699-258X(06)73033-9 doi