Neisseria meningitidis serogroup A Ag:PrThr:Pt:CSF:Ord
neisseria meningitidis serogroup a ag:prthr:pt:csf:ord
Neisseria meningitidis serogroup A Ag [Presence] in Cerebral spinal fluid
neisseria meningitidis serogroup a ag [presence] in cerebral spinal fluid