chapter 374 Find the cause

The old man looked at Roman Li and took the initiative to explain to him, "It happened around 2 o'clock in the afternoon. We received a report from the nurse saying that the girl named Li Shanshan was having difficulty breathing."
"We came immediately after we got the news and arranged oxygen-assisted breathing for her."
"The patient's condition was sudden, and there were no symptoms in the early stages. Other patients in the same ward with her did not feel any discomfort."
"So...