Dr. Jackson took out a syringe, drew the injection into it, and prepared to inject Mr. Shen and his son.
"Stop!" Yang Yu yelled sternly, his face cold and harsh, "Excuse me, Dr. Jackson, does your medicine come with instructions? Or rather, has this medicine been approved by any National Drug Regulatory Authority?"
As soon as Yang Yu asked this, Dr. Jackson's face instantly changed: "What do you mean by that, kid?"
"Isn't it clear enough?" Yang Yu responded coldly. "I suspect there's something wrong with your medicine that it's not legitimate! If it is, please present the approval number and instructions from the National Drug Regulatory Authority to prove its legality and safety."
Dr. Jackson's face twitched, and he found himself at a loss for words.
