Chén Yòushēng 陳又笙 (mid- to late-Qīng), renowned obstetrical specialist; transmitter of the Hēishéndān 黑神丹 (Black-Spirit Pill) formula included as a supplement in the Zhúlín nǚkē zhèngzhì 竹林女科證治 (KR3ei026).
Chén Yòushēng 陳又笙 (mid- to late-Qīng), renowned obstetrical specialist; transmitter of the Hēishéndān 黑神丹 (Black-Spirit Pill) formula included as a supplement in the Zhúlín nǚkē zhèngzhì 竹林女科證治 (KR3ei026).