title: [Fundamental studies on barium meals for the double contrast method, especially on particle size using Coulter counter].
mesh_terms: D001466:Barium Sulfate; D003287:Contrast Media; D006801:Humans; D010316:Particle Size; D011859:Radiography; D013270:Stomach / Q000000981:diagnostic imaging; D013679:Technology, Radiologic
chemical_list: D003287:Contrast Media; D001466:Barium Sulfate