C3264 Asphyxia
Doctor Lei, who was known as the Hundred Miles Holy Hand, patted the back of the old man. He looked up and glanced at the old man, then said calmly: "It's working, this is the blood clot she had accumulated in her chest for many years, it's the source of the disease. She'll be fine if she vomits it!"
The blood clot was the source of the disease. It sounded reasonable