APA način citiranja

Bratbak, D., Nordgård, S., Stovner, L., Linde, M., & Tronvik, E. (2014). EHMTI-0191. A novel approach for the treatment of cluster headache – onabotulinumtoxina block of the sphenopalatine ganglion. Springer.

Čikaški stil citiranja

Bratbak, D., S. Nordgård, L. Stovner, M. Linde, i E. Tronvik. EHMTI-0191. A Novel Approach for the Treatment of Cluster Headache – Onabotulinumtoxina Block of the Sphenopalatine Ganglion. Springer, 2014.

MLA način citiranja

Bratbak, D., et al. EHMTI-0191. A Novel Approach for the Treatment of Cluster Headache – Onabotulinumtoxina Block of the Sphenopalatine Ganglion. Springer, 2014.