Auricular electro-acupuncture as an additional perioperative analgesic method during oocyte aspiration in IVF treatment. - Sator-Katzenschlager,S.M.; Wölfler,M.M.; Kozek-Langenecker,S.A.; Sator,K.; Sator,P.G.; Li,B.; Heinze,G.; Sator,M.O. (Hum Reprod, 2006)