RT Journal Article SR Electronic T1 Comparison of Methods for Identifying Early Methotrexate-Induced Hepatotoxicity in Patients with Rheumatoid Arthritis JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1905 OP 1909 VO 34 IS 11 A1 John M. Arias A1 Kathryn A. Morton A1 James E. Albro A1 Gregory G. Patch A1 Sonia Valdivia A1 Harry E. Greenberg A1 Paul E. Christian A1 Frederick L. Datz YR 1993 UL http://jnm.snmjournals.org/content/34/11/1905.abstract AB