Zafar, U. et al. 2022. DIFFICULTY INDEX, DISCRIMINATION INDEX, SENSITIVITY AND SPECIFICITY OF SINGLE BEST ANSWER QUESTIONS TO ASSESS MEDICAL STUDENTS’ PERFORMANCE IN SEND UP EXAMINATION AT LAHORE MEDICAL & DENTAL COLLEGE. Pakistan Journal of Physiology. 18, 3 (Sep. 2022), 44–47. DOI:https://doi.org/10.69656/pjp.v18i3.1472.