Note on helical structures in some bacteria and viruses.
D001435:Bacteriophages; D004926:Escherichia coli; D011051:Poliomyelitis; D017955:Poliovirus / Q000208:ethnology*; D011511:Proteus; D014780:Viruses
BACTERIOPHAGE; ESCHERICHIA COLI; POLIOMYELITIS VIRUS/culture; PROTEUS