Regarding the ancient nose book, apart from the extensive citations in the Huang-fu MiZhenjiu Jiayi Jing from the Western Jin Dynasty, later scholars such as the Tang Dynasty Yang Shang-shan and Wang Tao also mentioned it and cited it in their works. However, the original text of this early Acupuncture and Moxibustion monograph, the ancient nose, has long been lost. Yet, it is not uncommon for many ancient texts to have their content or parts of their content preserved even though the books themselves are lost. For example, the Song Dynasty Zheng QiaoTongzhi?Jiaochou Lue specifically discussed this in the chapter "On Books That Are Lost in Name but Not in Substance." In addition to citing examples from literature and history, the text also uses medical books as examples. The ancient Mingtang Jing is essentially a case of this. Examining the Huang-fu MiZhenjiu Jiayi Jing from the Jin Dynasty, which references the Mingtang Jing, the Tang Dynasty Yang Shang-shan compilation Huangdi Neijing Mingtang (originally in thirteen volumes, now only the preface and the first volume remain, as recorded in the Old Tang Book?Bibliographical Treatise and New Tang Book?Bibliographical Treatise, the Huangdi Neijing Mingtang in thirteen volumes should be this book), and the Wang TaoWaitai Miyao Volume 29, which cites the Mingtang Jing, although the exact format is difficult to determine, the content suggests that the ancient Mingtang Jing was likely a three-volume work. It included meridian theory, zang-fu organ morphology, the interconnections of the five zang-organs, over 360 acupoints, and the indications of acupoints. Based on the content, it is inferred that the book was compiled after the Huangdi Neijing, most likely during the late Western Han or Eastern Han periods. Although the book is lost, its content can largely be reconstructed, so in essence, the book is not truly lost.