The structure of the myelin sheath. Electron density distribution. Phase problems.
D000818:Animals; D001001:Anura; D004583:Electrons; D008433:Mathematics; D008854:Microscopy, Electron; D009186:Myelin Sheath / Q000032:analysis*; D012584:Sciatic Nerve / Q000033:anatomy & histology; D014961:X-Ray Diffraction