Lǐ Jìfāng 李紀方 (zì Lúnqīng 倫青), late-Qīng Húnán 湖南 physician of Héngshān 衡山, working in the Lóngmén Shānfáng 龍門山房 study. No CBDB record; lifedates are not securely fixed, but he was active over the period c. 1860–1882, on the testimony of his own preface to KR3em027 Báihóu quánshēng jí 白喉全生集 (dated Guāngxù 8, 1882).
He reports his maternal grandfather Yǐn Shènhuī 尹慎徽, a learned all-round physician, as his principal teacher; he studied with him for over twenty years before compiling the present work, in collaboration with his cousin Zhào Zhòngbiāo 趙仲標, into the most important late-Qīng monograph on báihóu 白喉 (diphtheria). His doctrinal achievement is the systematic critique of the contemporary tendency to misidentify báihóu with epidemic-pestilence (yì 疫) and to apply cooling drugs uniformly: he insists that the syndrome must be classified into cold-form, heat-form, and mixed cold-heat sub-forms before treatment.