RT Journal Article SR Electronic T1 The spectrum of the antiphospholipid syndrome: a matter of perspective. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1939 OP 1941 VO 28 IS 9 A1 C A Clark A1 K A Spitzer A1 C A Laskin YR 2001 UL http://www.jrheum.org/content/28/9/1939.abstract AB