From therneau at mayo.edu  Fri Apr 19 14:41:21 2013
From: therneau at mayo.edu (Therneau, Terry M., Ph.D.)
Date: Fri, 19 Apr 2013 12:41:21 +0000
Subject: [Rd] how to control the environment of a formula
Message-ID: <CD96A5A0.1540%therneau@mayo.edu>

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[Rd] how to control the environment of a formula
Therneau, Terry M., Ph.D.