Standing in front of the door, the round-faced old man pointed to the three books on the table. "Go ahead."

Fang Qiu nodded and entered.

Fang Qiu went straight to the table and found these books were completely different from each other.

The first one was a famous Chinese medical record note, which specifically recorded a lot of difficult diseases and a variety of pathology.

The second one was about acupuncture.

The third ...