Singh S, Mishra R, Deigheidy EM. Comparison of Efficacy and Efficiency of Trans-Nasal Spheno-Palatine Ganglion Block for the Management of Post-Dural Puncture Headache. Rev Soc Port Anestesiol [Internet]. 2025 Oct. 2 [cited 2025 Dec. 5];34(3):92-8. Available from: https://revistas.rcaap.pt/anestesiologia/article/view/41691