APA način citiranja

Brechmann, T., & Schmiegel, W. (2015). Successful treatment of life-threatening bleeding from a duodenal posterior bulb peptic ulcer by an over-the-scope-clip. World J Gastroenterol.

Čikaški stil citiranja

Brechmann, Thorsten, i Wolff Schmiegel. "Successful Treatment of Life-threatening Bleeding From a Duodenal Posterior Bulb Peptic Ulcer By an Over-the-scope-clip." World J Gastroenterol 2015.

MLA način citiranja

Brechmann, Thorsten, i Wolff Schmiegel. "Successful Treatment of Life-threatening Bleeding From a Duodenal Posterior Bulb Peptic Ulcer By an Over-the-scope-clip." World J Gastroenterol 2015.