Low-concentration dual-baricity thoracic segmental spinal anesthesia for laparoscopic cholecystectomy: a retrospective case series. Advances in Anesthesia and Pain Medicine, [S. l.], v. 4, n. 1, 2026. DOI: 10.4081/aapm.2026.68. Disponível em: https://www.aapm-journal.com/site/article/view/68. Acesso em: 28 aug. 2026.