Background: Brain tumors account for about 85-90% of all cancers of the central nervous system. The incidence of brain tumors is 10-17 per 100.000 per person for intracranial tumors and 1-2 per 100…
Background. HIV (Human Immunodeficiency Virus) is a retrovirus that causes the death of CD4 + T cells and immune deficiency. Opportunistic infections are a major cause of HIV-related morbidity and …