GUEST, M The use of pneumoencephalography in the diagnosis of headache and epilepsy. [electronic resource] - Canadian Medical Association journal Aug 1958 - 170-2 p. digital Publication Type: Journal Article ISSN: 0008-4409 Subjects--Topical Terms: Brain Neoplasms--complicationsEpilepsy--diagnosisHeadache--diagnosisHumansPneumoencephalography