A. . Mohammed A. Almatary and M. A. . Mohammed Yaseen Al-Hetar, “The Prevalence of Upper Gastrointestinal Malignancies Among Patients Undergoing Upper Gastrointestinal Endoscopy at Jiblah University Hospital and Al-Matary Medical Center in Ibb Governorate, Yemen”, clin. med. & helt. res. jour., vol. 4, no. 5, pp. 991–996, Sep. 2024.