Jing Xiao Chan Bao(, Tested Treasures in Obstetrics) written by Zan Yin is the earliest extant book of obstetrics and gynecology in China. It was dispersed after written and reappeard by the late Qing Dynasty. Although widely quoted in later medical books, its spread process is not clear yet. In this paper, we reviewed the process of the book's written and the catalogue of historical records, and analyze the type and scope of articles quoted from this book by the Song, Yuan, and Ming dynasties. It can be speculated that the book was lost in the late Song Dynasty and doctors in Yuan and Ming Dynasties have not seen the handed-down masterpiece.
唐昝殷所著《经效产宝》是中国现存最早妇产科著作，成书后散佚，至清末再次流传。尽管后世医书广泛引用此书，但其流传过程至今未能梳理清楚。通过梳理《经效产宝》成书过程与历代史志目录，并分析宋元明3代医著引用《经效产宝》条文的类型和范围，推测此书曾于宋末亡佚，元明医家未见传本，从而勾勒其流传图景。.