RT Journal Article SR Electronic T1 Guidelines for routine liver biopsy during methotrexate treatment JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 317 OP 318 VO 61 IS 4 A1 Cash, Joseph M. A1 Wilke, William S. YR 1994 UL http://www.ccjm.org/content/61/4/317.abstract AB