Case 38-2009: A 16-Year-Old Boy with Paroxysmal Headaches and Visual ChangesNEJM 361:2367-2378, Brass,S.,et al, 2009
Analgesic Overuse Among Subjects with Headache, Neck, and Low-Back PainNeurol 62:1540-1544, Zwart,J-A.,et al, 2004