The doctor can draw a lottery

[Ding, you find a blue patient, and you will get the primary lottery chance + 1 after treatment.] [Ding, you treat a patient with minor injury, and you will get the primary lottery chance + 1.] [Ding, Congratulations, you have obtained advanced medical skills...] [you are searching for the surgery that the host will encounter soon, and the search radius is 100 meters...] [Ding, get heart stent surgery: advanced.] Li Chenyang gets the medical skills lottery system! as long as you save people, you can get random medical skills!