RT Journal Article SR Electronic T1 Defining unclassifiable connective tissue diseases: incomplete, undifferentiated, or both? JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 213 OP 215 VO 32 IS 2 A1 Andrea Doria A1 Marta Mosca A1 Pier Franca Gambari A1 Stefano Bombardieri YR 2005 UL http://www.jrheum.org/content/32/2/213.abstract AB