Guò Yìzhī 過繹之, Kāngxī-era Sūzhōu physician, compiler of Wúzhōng yīàn 吳中醫案; cited in 唐大烈 Táng Dàliè’s preface to KR3eq017 Wúyī huìjiǎng (1792) as the institutional precedent for the Sūzhōu-region focus.