Raw Message

Message-ID: <87A0C64299B27148B40BE0DB83EDE2DB0116A93B@RSMAIL002.REG.SKANE.SE>
Date: 2008-03-07T14:47:39Z
From: Nilsson Fredrik X
Subject: How to do a time-stratified case-crossover analysis for air pollution data?

An embedded and charset-unspecified text was scrubbed...
Name: not available
Url: https://stat.ethz.ch/pipermail/r-help/attachments/20080307/1052b107/attachment.pl