Analysis of Preoperative Test Screening in Patients Undergoing Elective Surgery at the Gynecology Department of the ""Rafael Ángel Calderón Guardia"" Hospital during 2009. Acta méd. costarric. [Internet]. 2010 Jun. 14 [cited 2026 Jun. 12];52(3):154-8. Available from: https://actamedica.medicos.cr/index.php/Acta_Medica/article/view/743