title: False negative brain scans excluding those found in cerebral infarction.
mesh_terms: D001927:Brain Diseases / Q000175:diagnosis*; D001932:Brain Neoplasms / Q000175:diagnosis*; D002533:Cerebral Angiography; D002561:Cerebrovascular Disorders / Q000175:diagnosis*; D005188:False Negative Reactions; D006801:Humans; D007238:Infarction / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D011187:Posture; D011877:Radionuclide Imaging; D013667:Technetium
chemical_list: D013667:Technetium