Zhù Dēngyuán 祝登元, early-to-mid Qīng physician of the Shùnzhì / Kāngxī era (fl. 1640s–1700s by internal evidence from the integration of 喻昌 / 李中梓 Wú-region clinical-doctrinal positions), author of KR3eq032 Xīnyī jí 心醫集 (2 juǎn). The work integrates classical Confucian xīnxué 心學 (mind-learning) categories into clinical reasoning. Not in CBDB; no further independent documentation located.