Cita APA (7th ed.)

Best practice & research: Clinical gastroenterology. Elsevier.

Cita Chicago (17th ed.)

Best Practice & Research: Clinical Gastroenterology. Amsterdam: Elsevier.

Cita MLA (8th ed.)

Best Practice & Research: Clinical Gastroenterology. Elsevier.

Atenció: Aquestes cites poden no estar 100% correctes.