Murai Kin 村井杶 (Chinese: Cūnjǐng Chūn, 1733–1815), hào Chinju 椿壽. Edo-period Japanese physician of the Kohōha 古方派 (Classical Formula school); leading disciple and intellectual heir of Yoshimasu Tōdō 吉益爲則. Native of Mino province (modern Gifu). Practiced in Kyōto from c. 1770 onwards, then served as physician to the Ōgaki domain. He was the principal Kohōha pharmacologist of the generation after Yoshimasu. His major work, the Zoku yakuchō 藥徵續編 (KR3ec078) — “Yakuchō Continued” — extends Yoshimasu’s Yakuchō method (KR3ec077) to a further 46 substances that Yoshimasu had not treated, using the same ShānghánJīnguì evidence-based exegetical procedure. The Zoku yakuchō is doctrinally close to its parent volume but distinguished by a more open attitude to commentarial discussion and a willingness to engage with textual cruxes (Murai is the author of many of the Wàitài bìyào and Qiānjīn fāng cross-references that the work uses). Japanese physician; not in CBDB.