Saul A. Schwartz

Gastric atrophy, atrophic gastritis, and gastric secretory failure. Correlative study by suction biopsy and exfoliative cytology of gastric mucosa, paper electrophoretic and secretory assays of gastric secretion, and measurements of intestinal absorption and blood levels of vitamin B12.

H. Nieburgs, G. Glass, F. D. Speer, 1960, Gastroenterology.