Z. Vassileva-Valerianova

Cancer incidence and survival in European adolescents (1978-1997). Report from the Automated Childhood Cancer Information System project.

E. Steliarova-Foucher, C. Stiller, E. Desandes, 2006, European journal of cancer.

Thyroid Cancer Incidence in Bulgaria Before and After The Introductıon of Universal Salt Iodization- An Analysis of National Cancer Registry Data.

L. Ivanova, M. Vukov, Z. Vassileva-Valerianova, 2020, Balkan medical journal.