Lingshu, a medical classic. 9 volumes, 8 1 article. There are also names such as Huangdi Neijing, Jiujuan, Needle Sutra and Lingshu Sutra. It is a companion piece of Su Wen and becomes Huangdi Neijing. This book was written during the Warring States period, not by one person. When Lin Bu and Gao Baoheng were ordered to collate medical books in the Northern Song Dynasty, Lingshu was listed as one of the eight medical books in the school, but it was not completed because of its incomplete biography.