Author = Ali Abdallah Abd El-Rahman
PRESCENCE OF GASTRIC PEPSINOGEN IN THE MIDDLE EAR FLUID OF PATIENTS WITH OTITIS MEDIA WITH EFFUSION

Volume 51, Issue 4, August 2022, Pages 2113-2120

Abd El-Rahman Mohamad Abou Bakr Abou Halfa; Ali Abdallah Abd El-Rahman; Tarek Mustafa Emran; Mohammad Fatehy Ramadan