“…15 In other studies around the world, several indicators such as the duration of wait time of the patient from entrance until admission at ED, patient wait time until doctor's visit, patient wait time from admission at ED since doctor's order, the duration of changing the patients' condition, duration of physical exit of patients discharged from the ED, duration from order until referral of patient, duration of obtaining admission from the target hospital, duration of the referred or admitted patient leaving the hospital's ED, and duration of performance and result preparation of lab tests and x-ray since the doctor's orders. 8,[18][19][20] Therefore, further studies are required in this area to clarify the strengths and weaknesses of the ED and define the road ahead to promote improvement. …”