Roentgenographic barium patterns and gastric secretion.
D001466:Barium Sulfate; D005260:Female; D005745:Gastric Acidity Determination; D005750:Gastric Juice / Q000378:metabolism*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D013272:Stomach Diseases / Q000000981:diagnostic imaging*
D001466:Barium Sulfate