Xuē Jǐ 薛己 (míng Jǐ 己, zì Xīnfǔ 新甫, hào Lìzhāi 立齋; 1487–1559, 明), Míng-period imperial physician of Wúxiàn 吳縣 (modern Sūzhōu, Jiāngsū). One of the most prolific late-Míng medical writers, with 16 separate works gathered in the Xuēshì yīàn 薛氏醫案 (KR3e0070, 77 juan total). Originally trained as an external-medicine specialist (yángyī), Xuē later became the leading Míng practitioner-and-theorist of internal medicine — particularly known for the systematic application of 李杲 Lǐ Gǎo’s Spleen-and-Stomach school doctrine combined with the Bāwèi yuán 八味丸 / Liùwèi wán 六味丸 prescription pair (the Sòng Jīnguì foundational kidney-yīn-and-yáng tonification prescriptions, originally Zhāng Zhòngjǐng’s). Xuē died of a surgical condition (yáng — “finally died of an external [surgical] condition”); critics took this as evidence that his warming-tonifying approach had backfired. Father of Xuē Kái 薛鎧 (also a physician; the Bǎo yīng cuō yào 保嬰撮要 in Xuē Jǐ’s Yīàn is by him). Xuē’s 16-work corpus shaped 16th-century Míng clinical practice and was a central target of Zhào Xiànkě’s 趙獻可 Yī guàn 醫貫 expansion-and-formalization. Catalog meta dynasty 明 is correct.