1. Kumar A, Annamaraju P. Gastric outlet obstruction. In: StatPearls. Treasure Island (FL): StatPearls Publishing; 2021. Available from: https://www.ncbi.nlm.nih.gov/books/NBK557826/?report=classic. [Last updated on 2020 Dec 14].
2. Gan SI. Gastric outlet obstruction in adults. In: Post TW, editor. UpToDate. Waltham, MA: UpToDate; 2020. https://www-uptodate-com.m-hulp.a17.csinet.es/contents/gastric-outlet-obstruction-in-adults?search=gastric outlet syndrome&source=search_result&selectedTitle=1~122&usage_type=default&display_rank=1 [Last accessed on 2021 Mar 30].
3. Gastric outlet obstruction at Bugando Medical Centre in Northwestern Tanzania: A prospective review of 184 cases;Jaka;BMC Surg,2013
4. Donnelly LF. Pediatric Imaging. Philadelphia, Pennsylvania, USA: Saunders; 2009.
5. Sonographic diagnosis of hypertrophic pyloric stenosis;Lumhagen;AJR Am J Roentgenol,1988