title: Does primary headache type influence secondary headache symptoms?
authors: Department of Neurology, Los Angeles Biomedical Research Institute, Los Angeles, United States ; Department of Neurology, Harbor-UCLA Medical Center, Torrance, Los Angeles, United States ; Department of Neurology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California, United States.
authors: Aaron
authors: A
authors: McMurtray
authors: Department of Neurology, Los Angeles Biomedical Research Institute, Los Angeles, United States.
authors: Erin
authors: E
authors: Saito