[1] Kyung Hee Univ, Korean Med Hosp, Korean Med Clin Trial Ctr, Seoul, South Korea
[2] Korea Inst Oriental Med, Div Clin Med, Daejeon, South Korea
[3] Kristiania Univ Coll, Sch Hlth Sci, Oslo, Norway
[4] UiT Arctic Univ Norway, Fac Med, Natl Res Ctr Complementary & Alternat Med, NAFKAM,Dept Community Med, Tromso, Norway