title: Symmetric photon deficiency in the femoral heads on bone imaging: a normal variant.
authors.forename: W L
authors.initials: WL
authors.lastname: Higgins
mesh_terms: D005270:Femur Head / Q000000981:diagnostic imaging*; D005271:Femur Head Necrosis / Q000000981:diagnostic imaging*; D006801:Humans; D011877:Radionuclide Imaging