APA aipamena

Holtmann, M. H., Keller, T., Galle, P. R., & Kiesslich, R. (2006). Recurrent gastrointestinal haemorrhage from the distal duodenum. BMJ Group.

Chicago Style aipamena

Holtmann, M H., T. Keller, P R. Galle, and R. Kiesslich. Recurrent Gastrointestinal Haemorrhage From the Distal Duodenum. BMJ Group, 2006.

MLA aipamena

Holtmann, M H., T. Keller, P R. Galle, and R. Kiesslich. Recurrent Gastrointestinal Haemorrhage From the Distal Duodenum. BMJ Group, 2006.