How to understand and conduct evidence-based medicine

Evidence-based medicine (EBM) refers to the conscientious, explicit, and judicious use of current best evidence in making appropriate clinical decisions Hence, it is necessary in EBM to connect the best external evidence with the values and preferences of patients and the expertise and insight of clinicians. Currently, EBM is attracting increasing interest in various fields, and consensus regarding the need for EBM is spreading, as EBM is considered to reflect the knowledge and skill that health care providers must possess. From a traditional point of view, medi-cine is something that should be learned from a master, and the decisions made by clinicians regarding the diagnosis, treatment, prognosis, and risk factors of patients should be dependent only on clinical experience and practice. In addition, significant emphasis was placed on the pathophysiology of diseases, which alone was considered as a sufficient basis for decisionmaking, and the diagnosis and treatment based on an expert's opinion was considered to be a standard method of diagnosis and treatment. However, EBM encompasses the use of the results of systematic, reproducible, unbiased research as much as possible in clinical practice, as well as the implementation of patient-centered diagnosis and treatment on the basis of evidence, rather than diagnosis and treatment dependent solely on the judgment of medical doctors EBM seeks changes in the ways in which clinicians perform diagnosis and treatment, teach and learn medicine, and carry out research, which are summarized as follows: 1) Clinical practice should be conducted on the basis of best evidence, not relying on conventional methods; 2) Clinicians should treat patients with compassion, place patients at the center of diagnosis and treatment, and perform patientoriented treatment; 3) Clinicians should learn or teach in a way