Haloi, Prajnananda, et al. “Thoracic Segmental Spinal Anesthesia for Cesarean Section in a Parturient With Atrial Septal Defect - a Case report.: TSSA in ASD Patient for LSCS”. Journal of the Portuguese Society of Anesthesiology, vol. 33, no. 3, Oct. 2024, doi:10.25751/rspa.35006.