WHS has been trading since 1792 as a newsagent and stationer.
WHS的交易已经1792年以来，作为报摊和文具。
2
Conclusion WHS questionnaire shows a high dependability in collecting reality data, but is reliability need to be improved in vignette questions.
结论WHS问卷在收集事实性数据方面具有很高的可靠性，但在情景问题方面的信度有待于提高。
3
"Is aspirin really that good or is there some other explanation for the findings that differ so much from those of the WHS and other primary prevention trials?" he asked.