Research subjects - General Practitioner students (years 3, 4, 5 and 6) of Hai Phong University of Medicine and Pharmacy - Clinical instructors include full-time and part-time lecturers of Hai Phong University of Medicine and Pharmacy - Managers of Haiphong University of Medicine and Pharmacy: Head, Deputy Head of Training Department, people who are in charge of teaching and learning management of students (year 3, 4, 5, 6) 2.1.2.