title: Failure to demonstrate special virulence of nontypable Haemophilus influenzae biotype 4 in neonatal sepsis.
mesh_terms: D006192:Haemophilus Infections / Q000382:microbiology*; D006193:Haemophilus influenzae / Q000472:pathogenicity*; D006801:Humans; D007231:Infant, Newborn; D014774:Virulence