Trujillo Soto H. From Widal seroagglutination to Polymerase Chain Reaction for the diagnosis of Salmonellosis. Med UPB [Internet]. 2005 Jun. 15 [cited 2026 Jun. 4];24(1):23-7. Available from: https://revistas.upb.edu.co/index.php/medicina/article/view/2486