What is the wall chart of acupuncture, meridians and acupoints drawn by Sun Simiao?

On the basis of Zhen Quan's Atlas of Acupuncture and Moxibustion, Sun Simiao creatively drew three large-scale color wall charts of acupuncture and moxibustion meridians and points. The three pictures respectively draw the front, back, side the twelve meridians and Qi-Jing eight veins of human body in different colors, which creates a precedent for color acupuncture drawing and plays an important role in improving the quality of acupuncture teaching and accurately locating acupoints.