Unexplained infertility treated with acupuncture and herbal medicine in Korea [corrected] [published erratum appears in J ALTERN COMPLEMENT MED 2010 Jul;16(7):817]. - Park JJ; Kang M; Shin S; Choi E; Kwon S; Wee H; Nam B; Kaptchuk TJ (Journal of Alternative & Complementary Medicine, 2010)