"It's okay." Martin, the investigator of the WHO, nodded. Then he looked at Fang Qiu and said, "We are here for the investigation. We can wait!"

The other investigators nodded one after another.

They saw the effect of this prescription on their own eyes and also believed that it could cure malaria, but they had to figure out whether this prescription would always be effective.

Only when the cure rate could be one hundred percent would they accept ...