BRENNEN BITTEL; KATHRIN HUSMANN. A Case Report of Thunderclap Headache with Sub-arachnoid Hemorrhage and Negative Angiography: A Review of Call-Fleming Syndrome and the use of Transcranial Dopplers in Predicting Morbidity. Journal of Vascular and Interventional Neurology, [S. l.], v. 4, n. 2, 2023. Disponível em: https://ojs.jvin.org/index.php/jvin/article/view/316. Acesso em: 16 jun. 2026.