title: Questionable value of absolute mean gray value for clinical practice.
authors.forename: W P
authors.initials: WP
authors.lastname: Martins
mesh_terms: D004715:Endometriosis / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D014463:Ultrasonography