C156 Second Challenge(2)

"Shi Lei, is there a problem?" Peng Quantong turned around and asked Shi Lei for his opinion.

"No problem." Shi Lei said.

"Then let's begin." Peng Quantong rolled up his sleeves, "Our first diagnosis is still the same as last time. I am the host, and this clinic is also opened by me. In order to avoid suspicion of cheating, all patients will be randomly selected