Evaluation of the effect of ambrisentan on digital microvascular flow in patients with systemic sclerosis using laser doppler perfusion imaging: a 12-week randomized double-blind placebo controlled trial
1 Hunter Holmes McGuire VA Medical Center, Richmond, VA, USA
2 Department of Rheumatic and Immunologic Diseases, Orthopedics and Rheumatology Institute, Cleveland Clinic, 9500 Euclid Avenue, Desk A50, Cleveland 44195, OH, USA