The fine structure of the parainfluenza viruses.
D006801:Humans; D010222:Parainfluenza Virus 1, Human; D010223:Parainfluenza Virus 2, Human; D018184:Paramyxoviridae Infections; D012141:Respiratory Tract Infections / Q000821:virology*; D014780:Viruses / Q000033:anatomy & histology*
RESPIRATORY TRACT INFECTIONS/virology; VIRUSES/anatomy and histology