“causal factor”簡單造句，causal factor造句子

H. pylori infection is recognized as a causal factor in the pathogenesis of chronic gastritis, peptic ulcer, gastric cancer, and gastric MALT lymphoma.

In light of characteristics of climatic disasters, the causal factors and types of weather phenomena in China, the authors put climatic disasters into 7 categories and 20 types.

Howard J. Feldman, the director of regulatory and scientific affairs at the American Petroleum Institute, noted that the evidence of a causal factor was inconclusive for some ailments.

Q: To what extent is desire a causal factor?