title: Evidence Based Emergency Medicine; Part 4: Pre-test and Post-test Probabilities and Fagan's nomogram.
authors: Emergency Department, Shohadaye Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors: Saeed
authors: S
authors: Safari
authors: Emergency Department, Shohadaye Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors: Alireza
authors: A
authors: Baratloo
authors: Faculty of medicine, Alexandria University, Alexandria, Egypt.
authors: Mohamed
authors: M
authors: Elfil
authors: Faculty of medicine, Zagazig University, Zagazig, Egypt.
authors: Ahmed
authors: A
authors: Negida