Improve doctors' medical skills and medical standards. According to Baijiahao, the role of Liang Dong 52 1 Key Physician Certificate is to improve doctors' medical skills and medical level. The Health and Health Commission of Henan Province issued the Notice on Launching Liang Dong 52 1 Plan (Training of Key Doctors at the Basic Level) in 2023. In 2023, Henan plans to train about 1200 backbone doctors for medical institutions in cities and counties. Doctors who are interested in improving their medical level, covering cardiovascular, neurological, emergency, tumor, interventional, anesthesia, severe, respiratory, pediatric, mental, rehabilitation, medical management and other fields, can seize the opportunity to continue their studies and improve their medical skills and medical level in order to better serve the society.