Acupuncture for the Treatment of Dry Eye: A Multicenter Randomised Controlled Trial with Active Comparison Intervention (Artificial Teardrops). - Tae-Hun Kim; Jung Won Kang; Kun Hyung Kim; Kyung-Won Kang; Mi-Suk Shin; So-Young Jung; Ae-Ran Kim; Hee-Jung Jung; Jin-Bong Choi; Kwon Eui Hong; Seung-Deok Lee; Sun-Mi Choi (PLoS ONE, 2012)