Additional file 1: of The efficacy and safety of Danggui-Sayuk-Ga-Osuyu-Saenggang-tang on Korean patients with cold hypersensitivity in the hands: study protocol for a pilot, double-blind, randomized, placebo-controlled, parallel-group clinical trial
SPIRIT Checklist. Recommendations for scientific, ethical, and administrative elements that should be addressed in a clinical trial protocol. (PDF 39 kb