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Streitberger, Konrad; Eichenberger, Urs; Schneider, Antonius; Witte, Steffen; Greher, Manfred (2007). Ultrasound measurements of the distance between acupuncture needle tip at P6 and the median nerve. Journal of alternative and complementary medicine, 13(5), pp. 585-91. Larchmont, N.Y.: Mary Ann Liebert 10.1089/acm.2007.6247
