title: George Russell Callender, MD.
mesh_terms: D049673:History, 20th Century; D008887:Military Medicine / Q000266:history; D009144:Museums / Q000266:history; D009885:Ophthalmology / Q000266:history; D010336:Pathology / Q000266:history; D012042:Registries / Q000266:history; D014481:United States