Hassan, F., Ahmad, K., Ayaz, S. B., & Khalil, H. B. (2021). SPECTRUM OF FINDINGS IN PATIENTS PRESENTING FOR UPPER GASTROINTESTINAL ENDOSCOPY AT A TERTIARY CARE HOSPITAL AND THE INFLUENCE OF AGE AND GENDER. Pakistan Armed Forces Medical Journal, 71(3), 744-48. https://doi.org/10.51253/pafmj.v71i3.2940