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PGMJ.44.514.597
PGMJ.44.514.597
http://dx.doi.org/10.1136/PGMJ.44.514.597
Comments on the incidence and natural history of gastric and duodenal ulcer
P356
Q36770632-978D1C91-DB5A-4CC5-860B-99A8BD141E9C
P356
PGMJ.44.514.597
http://dx.doi.org/10.1136/PGMJ.44.514.597