Lǐ Yúnsù 李雲驌 (zì Liángzhāi 良齋, fl. late Wànlì – Chóngzhēn, 明), late-Míng compiler-and-illustrator of KR3ek032 Xīnkè túxíng zhěncáng wàikē 新刻圖形枕藏外科. In his preface he recounts that he had scorned medicine as a young man, then suffered a chronic sore himself; finding a copy of the (anonymous) Zhěncáng wàikē in a friend’s bookbag, he treated himself and others successfully, judged it too useful to keep private, and — invoking Yuán Liǎofán’s 袁了凡 Gōngguò gé 功過格 (Ledgers of Merit and Demerit) doctrine on the merit of “transmitting one good formula” — financed the woodcut illustrations and printing. The reference to Yuán Liǎofán places his work in the late Wànlì / Chóngzhēn period. Not in CBDB.