Lǐ Shīshèng 李師聖 (Sòng), author of the obstetrical Chǎnlùn 產論; his work was paired with 郭稽中 Guō Jìzhōng’s formulary in the genealogy of Sòng fùkē writings traced by 王肯堂 Wáng Kěntáng’s preface to the Nǚkē zhǔnshéng (KR3ei030).