Four stages in the history of interferon research.
D001709:Biotechnology; D049673:History, 20th Century; D007372:Interferons / Q000266:history*; D008967:Molecular Biology / Q000266:history; D012367:RNA, Viral / Q000502:physiology; D012106:Research / Q000266:history; D014762:Viral Interference
D012367:RNA, Viral; D007372:Interferons