Alberca, R [Episodic ++paroxysmal hemicrania or chronic paroxysmal hemicrania in pre-chronic state?]. [electronic resource] - Neurologia (Barcelona, Spain) - 219-21 p. digital Publication Type: Case Reports; English Abstract; Journal Article ISSN: 0213-4853 Subjects--Topical Terms: AdultChronic DiseaseFemaleHumansMiddle AgedMigraine Disorders--physiopathology