TY - GEN AU - Fries,Roland AU - Shariat,Kaveh AU - von Wilmowsky,Hubertus AU - Böhm,Michael TI - Sildenafil in the treatment of Raynaud's phenomenon resistant to vasodilatory therapy SN - 1524-4539 PY - 2006///0302 KW - Adult KW - Aged KW - Blood Flow Velocity KW - drug effects KW - Connective Tissue Diseases KW - complications KW - Cross-Over Studies KW - Double-Blind Method KW - Drug Resistance KW - Female KW - Humans KW - Male KW - Middle Aged KW - Patient Selection KW - Piperazines KW - adverse effects KW - Purines KW - Raynaud Disease KW - drug therapy KW - Scleroderma, Systemic KW - Sildenafil Citrate KW - Sulfones KW - Treatment Outcome KW - Vasodilation KW - Vasodilator Agents N1 - Publication Type: Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1161/CIRCULATIONAHA.104.523324 ER -