TY - GEN AU - Tenser,Richard B TI - MRI as an outcome in multiple sclerosis clinical trials SN - 1526-632X PY - 2009///1222 KW - Clinical Trials as Topic KW - methods KW - Humans KW - Magnetic Resonance Imaging KW - Multiple Sclerosis KW - drug therapy KW - Treatment Outcome N1 - Publication Type: Comment; Letter UR - https://doi.org/10.1212/WNL.0b013e3181bd6baa ER -