A Comparison of The Analgesic Effect of Ultrasound Guided Glossopharyngeal Nerve Block Versus Blind Technique in Post Tonsillectomy Pain Relieve in Children. - Atef, Hossam Mohamed; Abd Elgawad, Mohamed Ibrahim; Khamis, Fatma Mohamed; Nasr, Nihal Adel; Elsaid A’mer, Yasmine Mohamed (Frontiers in Health Informatics, 2024)