Effects of Kami Guibi-tang in patients with mild cognitive impairment: study protocol for a phase III, randomized, double-blind, and placebo-controlled trial. - Shin HY; Yim TB; Heo HM; Jahng GH; Kwon S; Cho SY; Park SU; Jung WS; Moon SK; Ko CN; Park JM (BMC complementary medicine and therapies, 2022)