KRUMOVA, Stefka; GOLKOCHEVA-MARKOVA, Elitsa; ANGELOVA, Svetla; VOLEVA, Silviya; PAVLOVA, Adelina; GEORGIEVA, Irina; GENOVA-KALOU, Petia. Dried Blood Spots as a Clinical Samples for Laboratory Diagnosis and Surveillance of Vaccine-Preventable Diseases in Bulgaria. American Scientific Research Journal for Engineering, Technology, and Sciences, Jordan, v. 51, n. 1, p. 183–191, 2019. Disponível em: https://asrjetsjournal.org/American_Scientific_Journal/article/view/4611. Acesso em: 18 sep. 2025.