Song Dynasty ? Liu Fang (Wan Ming) authored. Youyou XinshuThe original publication is long lost. When Ming Dynasty's Chen L?duan re-edited this book, he sought it extensively and managed to obtain the complete version. Youyou XinshuThe main existing versions include: the Chen L?duan copy from the 14th year of the Wanli era (1586) of the Ming Dynasty, another edition from the Wanli period of the Ming Dynasty, a microfilm of a Ming Dynasty printed edition, a Ming Dynasty manuscript, a Japanese copy based on the original Song Dynasty ink manuscript, and a 1981 photolithographic reprint of Chen L?duan's copy by Chinese Medicine Ancient Books Publishing House.

Youyou XinshuConsists of 40 volumes. Volumes 1-3 cover general discussions, including topics on fertility, pediatric care, medication, and diagnostic characteristics; Volumes 4-5 discuss neonatal care and treatment of common neonatal diseases; Volume 6 addresses developmental delays and other conditions due to congenital deficiencies; Volumes 7-12 discuss mental and classical formula-related disorders such as convulsions, mania, fright, and epilepsy; Volumes 13-17 cover seasonal epidemics, coughs, and malaria; Volume 18 discusses macula and papule, measles, and smallpox; Volumes 19-22 cover fever, phlegm, sweating, jaundice, and cold reversal diseases; Volumes 23-26 discuss infantile malnutrition; Volumes 27-30 cover cholera, diarrhea, hemorrhagic syndrome, hemorrhoids, and strangury; Volumes 31-32 discuss parasitic diseases, hernias, and fluid retention; Volumes 33-34 cover five sense organs diseases; Volumes 35-39 discuss abscesses, sores, erysipelas, and external injuries; Volume 40, "On Medicines and Prescriptions," mainly records the aliases (or prominent characteristics) of commonly used drugs, referenced books, and additional prescriptions. The entire book is divided into 547 sections, each first citing Zhubing Yuanhou Lun and other texts to discuss the pathology and symptoms, followed by detailed treatments with various prescriptions, referencing over 160 pre-Song medical texts. The book is comprehensive, rich in content, and serves as a complete pediatric compendium summarizing pre-Song experiences. The cited materials are mostly annotated with sources, making it not only clinically practical but also of significant documentary value. The book preserves excerpts from several lost Tang and Song pediatric texts, providing important insights into the development of pediatrics during these periods.