title: Response to: 'is there a direct relationship between serum level of methotrexate and clinical efficacy and tolerability?' by Fleishman and Yazici.
authors: Department of Rheumatology, University of Colorado, Englewood, Colorado, USA.
authors: Michael H
authors: MH
authors: Schiff
authors: Clinical Development, Antares Pharma Inc, Ewing, New Jersey, USA.
authors: Jonathan S
authors: JS
authors: Jaffe
authors: Medical Department, Antares Pharma Inc, Ewing, New Jersey, USA.
authors: Bruce
authors: B
authors: Freundlich
mesh_terms: D018501:Antirheumatic Agents / Q000008:administration & dosage*; D001172:Arthritis, Rheumatoid / Q000188:drug therapy*; D005260:Female; D006801:Humans; D008297:Male; D008727:Methotrexate / Q000008:administration & dosage*
chemical_list: D018501:Antirheumatic Agents; D008727:Methotrexate
keywords: Methotrexate; Rheumatoid Arthritis; Treatment