title: THE EFFECT OF TRYPSIN ON INFLUENZA VIRUS.
mesh_terms: D004583:Electrons; D008853:Microscopy; D008854:Microscopy, Electron; D009975:Orthomyxoviridae; D012106:Research; D014357:Trypsin
chemical_list: D014357:Trypsin
keywords: EXPERIMENTAL LAB STUDY; INFLUENZA VIRUSES; MICROSCOPY, ELECTRON; TRYPSIN