Determination of the viral particle content of influenza vaccines by electron microxcopy.
D000371:Agglutination; D000956:Antigens, Viral / Q000032:analysis; D007252:Influenza Vaccines / Q000592:standards*; D008854:Microscopy, Electron; D009975:Orthomyxoviridae / Q000276:immunology / Q000302:isolation & purification*
D000956:Antigens, Viral; D007252:Influenza Vaccines