Department of Neurology Cedars-Sinai Medical Center;
Los Angeles;
CA;
USA;
Department of Public Health Sciences;
Division of Biostatistics;
University of California Davis;
Davis;
CA;
USA;
The Pain Center;
Cedars-Sinai Medical Center;
Los Angeles;
CA;
USA;
Headache; Pharmacogenetics; Cytochrome; P450; Cerebrovascular; Risk; Cardiovascular; Risk;