Risk Factors and Comorbidity in Patients with Bacterial Meningitis
Argirova, P., Kalchev, Y., Murdjeva, M., Stoycheva, M.
A Study of Paratyphoid Fever in Bulgarian Children
Pavlova, M., Alexandrova, E., Kalchev, Y., Velev, V., Murdjeva, M., Kantardjiev, T.