COMPARSION OF EFFECTIVENESS OF LOW-DOSE INTRAVENOUS KETAMINE (0.2 MG/KG) WITH (0.5 MG/KG) INTRAVENOUS TRAMADOL FOR THE PREVENTION OF POST- SPINAL ANESTHESIA SHIVERING. The Research of Medical Science Review, [S. l.], v. 3, n. 5, p. 1–10, 2025. Disponível em: http://thermsr.com/index.php/Journal/article/view/1059.. Acesso em: 14 may. 2025.