張渙 Zhāng Huàn
Zhāng Huàn 張渙, Southern-Sòng military-rank physician with the title Tuánliànshǐ 團練使; author of the emergency-moxibustion handbook Bèijí jiǔfǎ 備急灸法 (KR3ee049). Likely identical with the Sòng paediatrician 張渙 (author of Jǐshēng tángshì xiǎo’ér fāng 濟生堂氏小兒方) named in some catalogues, but the identification is not secure.