Variants of Chronic Paroxysmal Hemicrania

1 Sjaastad O Dale J. Evidence for a new (?) treatable headache entity.Headache 1974;14:105–8.

2 Kudrow L Esperance P Vijayan N. Episodic paroxysmal hemicrania? Cephalalgia 1987;7:197–201.

3 Sjaastad O Spierings ELH. "Hemicrania continua"; another headache absolutely responsive to indomethacin.Cephalalgia 1984;4:65–70.

4 Pöllmann W Pfaffenrath V. Chronic paroxysmal hemicrania: the first possible bilateral case.Cephalalgia 1986;6:55–7.

5 Headache Classification Committee of the International Headache Society.Classification and Diagnostic Criteria for Headache Diagnosis, Cranial Neuralgias and Facial Pain.Cephalalgia 1988;8(Suppl 7):1–96.