title: Further experience with urea in encephalography.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001921:Brain / Q000000981:diagnostic imaging*; D001932:Brain Neoplasms / Q000000981:diagnostic imaging*; D002648:Child; D002675:Child, Preschool; D003287:Contrast Media; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D011011:Pneumoencephalography / Q000379:methods*; D014508:Urea
chemical_list: D003287:Contrast Media; D014508:Urea