Gashaw Messele, Yeshi Woldemedhin, Motuma Demissie, Kidanemariam Mamo, and Aberra Geyid, “Common Causes of Nosocomial Infections and Their Susceptibility Patterns in Two Hospitals in Addis Ababa”, Ethiop J Health Biomed Sci, vol. 2, no. 1, p. 6, Nov. 2020.