- This diffusely enlarged thyroid gland is somewhat nodular.www-medlib.med.utah.edu/WebPath/ENDOHTML/ENDO021.html
- Teaching file for nodular goiter (Plummer's Disease).www.uhrad.com/spectarc/nucs023.htm
- Teaching file on toxic multinodular goiter.www.uhrad.com/spectarc/nucs011.htm