title: Characterization of a new infectious bronchitis virus isolate. II. Some chemical and physical properties of Clark 333.
mesh_terms: D000818:Animals; D002642:Chick Embryo; D002725:Chloroform / Q000494:pharmacology; D005374:Filtration; D006358:Hot Temperature; D006863:Hydrogen-Ion Concentration; D008826:Microbial Sensitivity Tests; D008854:Microscopy, Electron; D012328:RNA Viruses / Q000032:analysis* / Q000145:classification / Q000472:pathogenicity; D014357:Trypsin / Q000494:pharmacology
chemical_list: D002725:Chloroform; D014357:Trypsin