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Review
. 1998 Sep 26;317(7162):875-80.
doi: 10.1136/bmj.317.7162.875.

When placebo controlled trials are essential and equivalence trials are inadequate

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Review

When placebo controlled trials are essential and equivalence trials are inadequate

M R Tramèr et al. BMJ. .
No abstract available

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Figures

Figure 1
Figure 1
Data on included and excluded trials
Figure 2
Figure 2
Event rate scattergrams showing cumulative event rates up to 48 hours after surgery from (top) placebo and “no treatment” controlled trials and (bottom) active controlled trials (dotted line represents equality)
Figure 3
Figure 3
Potential shortcomings of active controlled trials

Comment in

References

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    1. Markman M. When regulatory requirements conflict with ethical study design: the case of oral ondansetron. Cancer Invest. 1994;12:654–656. - PubMed

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