@misc{indiciaee45177121c44, title = {Intranasal sumatriptan in cluster headache: randomized placebo-controlled double-blind study.}, author = {J A van Vliet and A Bahra and V Martin and N Ramadan and S K Aurora and N T Mathew and M D Ferrari and P J Goadsby}, year = {2003}, doi = {10.1212/01.wnl.0000046589.45855.30}, url = {https://pubmed.ncbi.nlm.nih.gov/12601104/}, note = {Source identifier: 12601104} }