Gastric scanning with technetium 99m.
D003937:Diagnosis, Differential; D006801:Humans; D011877:Radionuclide Imaging; D013270:Stomach; D013272:Stomach Diseases / Q000175:diagnosis; D013274:Stomach Neoplasms / Q000175:diagnosis; D013667:Technetium
D013667:Technetium