Guirgis, M. et al. 2022. Efficacy of Crural Block in Improving Pain Following Laparoscopic Hiatus Hernia Repair: A Cohort Comparison Study. Journal of Medical and Health Studies. 3, 2 (Apr. 2022), 01–06. DOI:https://doi.org/10.32996/jmhs.2022.3.2.1.