Kakucs, C., C. Berce, A. Tamas-Szora, G. Ungureanu, and I. S. Florian. “Drotaverinum – a New Modality of Prevention and Treatment in Cerebral Vasospasm After Subarachoidian Hemorrhage?”. Romanian Neurosurgery, vol. 30, no. 2, June 2016, pp. 177-83, http://journals.lapub.co.uk/index.php/roneurosurgery/article/view/897.