Risk factors of perioperative mortality from complicated peptic ulcer disease in Africa: systematic review and meta-analysis
Sarah Peiffer, Matthew Pelton, Laura Keeney, Eustina G Kwon, Richard Ofosu-Okromah, Yubraj Acharya, Vernon M Chinchilli, David I Soybel, John S Oh, Paddy Ssentongo
BMJ Open Gastroenterology Feb 2020, 7 (1) e000350; DOI: 10.1136/bmjgast-2019-000350
