Yáng Yuān 楊淵, zì Zǐān 子安 (b. 1813, died after 1881). Late-Qīng physician active across the entire mid-to-late 19th century. Author of KR3eq095 Shòushān bǐjì 壽山筆記, whose self-preface he signed in 1881 at the age of 69. He explicitly positions himself in the bǐjì-medical lineage of Miù Xīyōng (the Sōngxīn bǐjì) and Yóu Yí (the Yīxué dúshū jì). Distinctive for integrating the forensic Xǐyuān lù 洗冤錄 morphology of blood clots into the gynaecological differential of tāilòu / tāixià. Not in CBDB.