RT Journal Article SR Electronic T1 Not yet time to change the guidelines for monitoring methotrexate liver toxicity: they have served us well. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1590 OP 1592 VO 29 IS 8 A1 Kremer, Joel M YR 2002 UL http://www.jrheum.org/content/29/8/1590.abstract AB