1. Intracranial suppurative complications of otitis media and mastoiditis;Bluestone,1983
2. Acute bacterial meningititis;Fulginiti,1975
3. Infectious diseases of children;Krugman,1981
4. Acute bacterial meningitis;Hoeprich,1977
5. Mastoid and paranasal sinus infection and their relation to the central nervous system;Nager,1967