Mohamed Anwer RIFKY; Mohamed Mowafy KHATTAB; Ayman Fathy ZEID; Ahmed Sobhy HEGAB; Basmah Ahmed Abdelrahman ALROBAA. A Comparative Study on Preprocedure Ultrasound-Guided Midline Spinal Anaesthesia and Conventional Landmarks Technique. Research Developments in Medicine and Medical Science Vol. 1, [S. l.], p. 176–186, 2023. DOI: 10.9734/bpi/rdmms/v1/9509F. Disponível em: https://stm.bookpi.org/RDMMS-V1/article/view/9630. Acesso em: 13 jun. 2026.