"Cell anatomy" . "Discovery and invention controversies" . "Viral regulatory and accessory proteins" . "Viral diseases" . "1983 in biology" . "Sexually transmitted diseases and infections" . "Infectious diseases" . "IARC Group 2B carcinogens" . "Cell biology" . "Epidemiology" . "Glial cells" . "Lentiviruses" . "Pathogenic microbes" . "Causes of death" . "Macrophages" . "HIV/AIDS" . "Molecular biology" .