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[Discussion on method for locating acupoint "Mingmen" (GV 4) in adult rats].

"Mingmen" (GV 4) is one of the most frequently used acupoints in acupuncture clinic. In recent years, more and more experimental researches have been focusing on GV 4 or acupoint recipe containing GV 4 in rats. Accurate location of GV 4 is probably not only related to fully display its therapeutic effect, but also to help study its underlying mechanisms. However, there has been no unified standard about the accurate location of GV 4 in the adult rat at present. In the present paper, the authors review related literature about GV 4 location in experimental studies in recent 10 years, and put forward a practical method for locating GV 4 in the rat by combining their own experience. That is, GV 4 is taken according to the relative relationship of ilium and spinous process of the lumbar vertebra. In addition, the authors also recommend some matters needing attention in locating GV 4 in rats.