Abdel Wahab A. S.S. Mohammed; Tamer M.A Ewieda; Wael M. Mossa; Abdelfattah M. Abdelfattah; Mohammed H. Alqassas; Ayman S. Abdelaziz Elsaily. Comparative Study Between Three Approaches of Ultrasound Guided Quadratus Lumborum Block for Post-Operative Analgesia in Total Hip Replacement With Spinal Anaesthesia. J Popl Ther Clin Pharmacol 2023, 30, 109-116.