%0 Journal Article %T The efficacy and safety of the herbal medicine geonchildan for patients with active rheumatoid arthritis: study protocol for a randomized, double-blind, placebo-controlled, parallel pilot trial %A Ga Young Yoon %A Jae-Dong Lee %A Jihye Kim %A Jun-Hwan Lee %A Jung Won Kang %A Kyung-Min Shin %A Ojin Kwon %A Seunghoon Lee %A So-Young Jung %A Yeeun Cho %J Archive of "Trials". %D 2018 %R 10.1186/s13063-018-2849-3 %K Geonchildan %K Rheumatoid arthritis %K Herbal medicine %K Randomized clinical trial %K Study protocol %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6122614/