Al-Sarraf, S. A.; Al-Obaidi, S. M.; Al-karim, M. F. Abdominal Operations Without Nasogastric Tube :A Major Advance in Modern Surgery. JFacMedBagdad 2008, 50 (3), 303-307. https://doi.org/10.32007/jfacmedbagdad.5031246.