D W Dodick - Nosological Entities? Thunderclap Headache. J Neurol Neurosurg Psychiatry 2002;72:6–11. https://jnnp.bmj.com/content/72/1/6.info

Long BJ, Koyfman A. - Benign Headache Management in the Emergency Department

The Journal of Emergency Medicine, Vol. 54, No. 4, pp. 458–468, 2018

https://www.jem-journal.com/article/S0736-4679(17)31189-7/fulltext

Edlow JA et al Clinical Policy: Critical Issues in the Evaluation and Management
of Adult Patients Presenting to the Emergency Department With Acute Headache

Ann Emerg Med. 2008;52:407-436.

https://www.annemergmed.com/article/S0196-0644(08)01463-7/fulltext