title: Human pain and evoked potentials: possible assessment of headache with endogenous brain potentials triggered by the R wave of EKG in pain patients.
mesh_terms: D000328:Adult; D001007:Anxiety; D001921:Brain / Q000503:physiopathology*; D003863:Depression; D004562:Electrocardiography; D005073:Evoked Potentials, Somatosensory; D005260:Female; D006261:Headache / Q000503:physiopathology; D006801:Humans; D010146:Pain / Q000503:physiopathology*