Diagnostic criteria for<unk><unk>  require at least 5 attacks,  unilateral orbital pain lasting >15 minutes and presence of sense of agitation or restlesness accompained with or without conjcutival injection, nasal congestion, eyelid edema and miosis.
Cluster headache diagnostic criteria
Tension headache diagnostic criteria
Migraine epidemiology and demographics
Dizziness epidemiology and demographics
Migraine classification
Migraine laboratory findings
Trigeminal neuralgia epidemiology and demographics
Otalgia epidemiology and demographics