Professional base should have more than 60 in-service instructors. 4. The professional base should have relatively fixed sub-professional teachers, and each sub-professional should have no less than 3 teachers. 5. Instructor's title and education: internal medicine, respiratory, cardiovascular and digestive sub-majors, with 2 or more chief physicians, 1 deputy chief physicians and 5 or more attending physicians; Other sub-majors, chief physician 1, deputy chief physician 1, attending physician 2; 95% have bachelor degree or above in medicine, and the sum of professional and technical positions of chief physician and deputy chief physician accounts for 30% or more. (2) The condition for guiding doctors is 1. Bachelor degree or above in medicine, attending physician or above in professional and technical positions, and more than 2 years of teaching experience in diagnostics or wards. Familiar with common teaching methods. 2. Instructing doctors should at least participate in the resident training at the specialist level, and obtain the qualifications of teachers at or above the specialist level. (3) the person in charge of the professional base has a medical bachelor degree or above, and the chief physician has a professional and technical position. He has been engaged in medical and teaching work in this major for more than 15 years, actively promoting teaching research and reform, and has certain academic influence in this field. Teaching Requirements (1) Professional bases for teaching activities should actively carry out various teaching activities as required. Bedside teaching should be carried out daily, with clinical lectures at least 1 time every week, teaching rounds at least 1 time every two weeks, teaching cases at least 1 time every two weeks, and difficult cases or deaths at least 1 time every month. Encourage the development of teaching clinics in combination with the actual situation of this professional base.