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st: Sample size calculation


From   <slaowattana@pol.net>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Sample size calculation
Date   Wed, 26 Oct 2005 09:19:23 -0400 (EDT)

We are planning to measure some cytokines in patients with MS comparing
between a group with treatment and control, but there have not been
literatures regarding these measurements, so we do not have an estimated
mean and standard deviation. Is there a way to estimate a sample size?
(our IRB really wants to see sample size estimate.) Thanks.


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