Valença, Marcelo Moraes, et al. “Chronic Subdural Hematoma That Developed After a Diagnostic Lumbar Puncture: Headache Worsens With Bilateral Compression of Jugular Veins (Queckenstedt’s Maneuver)”. Headache Medicine, vol. 12, no. 4, Apr. 2022, pp. 346-8, doi:10.48208/HeadacheMed.2021.59.