[Bacteriologic study on gastric juice of patients with chronic gastritis in areas with high and low risk of stomach cancer--a preliminary report].
D001419:Bacteria / Q000302:isolation & purification*; D002681:China; D002908:Chronic Disease; D005750:Gastric Juice / Q000382:microbiology*; D005756:Gastritis / Q000382:microbiology*; D006801:Humans; D009565:Nitrate Reductases / Q000032:analysis; D009573:Nitrites / Q000032:analysis; D013274:Stomach Neoplasms / Q000453:epidemiology / Q000209:etiology*
D009573:Nitrites; D009565:Nitrate Reductases