1. Altitude headache;Appenzeller;Headache,1972
2. Temporal arteritis;Appenzeller;Postgrad. Med.,1974
3. Headache in small vessel disease of the brain: A study of patients with systemic lupus erythematosus;Atkinson;Headache,1975
4. Renin response during hemodialysis headache;Bana;Headache,1976
5. Intracranial arteries, morphological differences in extracerebral and intracerebral vessels in proceedings;Dahl;The Bergen Migraine Symposium Suppl.,1975