TY - CHAP M1 - Book, Section TI - Headache A1 - Llinas, Rafael H. A2 - McKean, Sylvia C. A2 - Ross, John J. A2 - Dressler, Daniel D. A2 - Scheurer, Danielle B. PY - 2017 T2 - Principles and Practice of Hospital Medicine, 2e AB - Key Clinical Questions Are there warning signs of a secondary headache that would require further imaging? Is the headache new or different? Is the headache brought on by exertion, sexual intercourse, coughing, or sneezing? Is the onset of the headache sudden or severe? Did head or neck trauma precede the headache? At the beginning of the headache syndrome did the patient have any neurologic symptoms other than visual symptoms? SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/20 UR - accessmedicine.mhmedical.com/content.aspx?aid=1137610763 ER -