Patient-controlled Analgesia with Remifentanil in a Parturient with Ankylosing Spondylitis and SARS-CoV-2 Infection: A Case Report. Acta Medica Philippina, [S. l.], v. 58, n. 9, 2024. DOI: 10.47895/amp.v58i9.8779. Disponível em: https://actamedicaphilippina.upm.edu.ph/index.php/acta/article/view/8779. Acesso em: 10 apr. 2025.