Neurology emergencies. In: Cameron P, Jelinek G, Kelly A-M, Brown A, Little M, eds. Textbook of Adult Emergency Medicine. Philadelphia, PA: Elsevier Churchill Livinstone; 2015:Section 8.
• Garza I, et al. Overview of chronic daily headache. Accessed Jan. • Chronic daily headache: An overview. American Migraine Foundation. Accessed Jan. • Yancey JR, et al.
Chronic daily headache: Diagnosis and management. American Family Physician. • Chronic daily headache and chronic migraine. American Headache Society. Accessed Jan.
• Headaches and complementary health approaches. National Center for Complementary and Integrative Health. Accessed Jan.
Allscripts EPSi. Mayo Clinic, Rochester, Minn.