俞桂庭
Yú Guìtíng 俞桂庭 (Qīng), source of the dictum “medical principle is deep and subtle; of one hundred who study it, ten will succeed; of those, one will master it” cited in the Chóngkān preface of KR3ep085 Wángshì yīàn sānbiān.
Yú Guìtíng 俞桂庭 (Qīng), source of the dictum “medical principle is deep and subtle; of one hundred who study it, ten will succeed; of those, one will master it” cited in the Chóngkān preface of KR3ep085 Wángshì yīàn sānbiān.