APA-referens (7:e uppl.)

Cassinotti, A., Actis, G., Duca, P., Massari, A., Colombo, E., Gai, E., . . . Ardizzone, S. (2009). Maintenance treatment with azathioprine in ulcerative colitis: Outcome and predictive factors after drug withdrawal.

Chicago-referens (17:e uppl.)

Cassinotti, A., et al. Maintenance Treatment with Azathioprine in Ulcerative Colitis: Outcome and Predictive Factors After Drug Withdrawal. 2009.

MLA-referens (9:e uppl.)

Cassinotti, A., et al. Maintenance Treatment with Azathioprine in Ulcerative Colitis: Outcome and Predictive Factors After Drug Withdrawal. 2009.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.