Xià Dǐng 夏鼎 (b. 1647, zì Yǔzhù 禹鑄, hào Shàochén 紹臣), Qīng-period paediatrician active during the early Kāngxī era, native of the ChǔWǎn 楚皖 (HúběiĀnhuī) border region. He inherited a two-generation family paediatric practice from his grandfather and father. His principal work Yòukē tiějìng 幼科鐵鏡 (KR3ej011), completed in 1695, is one of the most original Qīng-period paediatric treatises, distinguished by its substantial expansion of paediatric tuīná 推拿 (massage) therapy — including the famous Tuīná dàiyào fù 推拿代藥賦 (Rhapsody on Massage as Replacement for Medicine) — and its emphasis on facial visual diagnosis. He criticised the conventional sānguān zhǐwén 三關指紋 (three-pass finger-vein) diagnostic method as yījiā yìjiào 醫家異教 (heterodox teaching among physicians) and devoted a polemical section to repudiating the conventional jīngfēng 驚風 diagnostic nomenclature. The work circulated widely in the ChǔWǎn region during the Kāngxī–Qiánlóng era and spread to north China in the late Qīng.