Recent Advances in the Diagnosis and Management of Cluster Headache
BMJ 376:e059577, Schindler, E. & Burish, M.J., 2022
Short-Lasting Unilateral Neuralgiform Headache Atacks with Tearing & Conjunctival Injection:First"Symptomatic"Case
Cephalalgia 11:123-127, Bussone,G.,et al, 1991
Severe Headaches, When to Worry, What To Do
Postgrad Med 83:164-180, Drexler,E.D., 1990