title: Teaching case presentation--primary thunderclap headache.
authors.affiliation: Montefiore Headache Center, USA.
authors.forename: Sara
authors.initials: S
authors.lastname: Tarshish
authors.forename: Matthew S
authors.initials: MS
authors.lastname: Robbins
mesh_terms: D000368:Aged; D000465:Algorithms; D003663:Decision Trees; D003937:Diagnosis, Differential; D003952:Diagnostic Imaging; D004632:Emergency Medical Services / Q000379:methods*; D005260:Female; D051270:Headache Disorders, Primary / Q000175:diagnosis* / Q000503:physiopathology* / Q000628:therapy; D006801:Humans; D009020:Morphine / Q000008:administration & dosage* / Q000009:adverse effects; D009294:Narcotics / Q000008:administration & dosage* / Q000009:adverse effects; D012008:Recurrence; D016896:Treatment Outcome
chemical_list: D009294:Narcotics; D009020:Morphine