PT - JOURNAL ARTICLE AU - M E Hettema AU - D Zhang AU - H Bootsma AU - C G M Kallenberg TI - Bosentan therapy for patients with severe Raynaud’s phenomenon in systemic sclerosis AID - 10.1136/ard.2007.073684 DP - 2007 Oct 01 TA - Annals of the Rheumatic Diseases PG - 1398--1399 VI - 66 IP - 10 4099 - http://ard.bmj.com/content/66/10/1398.short 4100 - http://ard.bmj.com/content/66/10/1398.full SO - Ann Rheum Dis2007 Oct 01; 66