Yi Xu (also Yi Jie, Yi Jiao, Yi Ju) (Chinese: 義姁, fl. 2nd-century BC), was a Chinese physician. She is known as one of the famous four female physicians
Lü Zhi (241–18 August 180 BC), courtesy name E'xu (娥姁) and commonly known as Empress Lü (traditional Chinese: 呂后; simplified Chinese: 吕后; pinyin: Lǚ Hòu)