Colli A, Gana JC, Turner D, Yap J, Adams-Webber T, Ling SC, Casazza G (October 2014). "Capsule endoscopy for the diagnosis of oesophageal varices in people with chronic liver disease or portal vein thrombosis". The Cochrane Database of Systematic Reviews. 10 (10): CD008760. doi:10.1002/14651858.CD008760.pub2. PMID25271409.
Colli A, Gana JC, Turner D, Yap J, Adams-Webber T, Ling SC, Casazza G (October 2014). "Capsule endoscopy for the diagnosis of oesophageal varices in people with chronic liver disease or portal vein thrombosis". The Cochrane Database of Systematic Reviews. 10 (10): CD008760. doi:10.1002/14651858.CD008760.pub2. PMID25271409.