RT Journal Article SR Electronic T1 Bioavailability of higher dose MTX comparing oral and subcutaneous administration in patients with RA. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1412 OP 1412 VO 32 IS 7 A1 Rolf Rau YR 2005 UL http://www.jrheum.org/content/32/7/1412.abstract AB