title: Morphologic heterogeneity in egg- and monolayer-propagated newcastle disease virus.
mesh_terms: D000956:Antigens, Viral / Q000032:analysis; D002460:Cell Line; D002499:Centrifugation, Density Gradient; D003470:Culture Media; D005720:Gamma Rays; D006389:Hemagglutinins, Viral; D009439:Neuraminidase / Q000494:pharmacology; D009522:Newcastle disease virus / Q000032:analysis / Q000302:isolation & purification* / Q000648:ultrastructure; D010743:Phospholipids / Q000032:analysis; D011402:Pronase / Q000494:pharmacology; D012367:RNA, Viral / Q000032:analysis; D011830:Radiation Effects; D014357:Trypsin / Q000494:pharmacology; D014466:Ultraviolet Rays; D010948:Viral Plaque Assay; D014776:Virus Cultivation
chemical_list: D000956:Antigens, Viral; D003470:Culture Media; D006389:Hemagglutinins, Viral; D010743:Phospholipids; D012367:RNA, Viral; D009439:Neuraminidase; D014357:Trypsin; D011402:Pronase