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February 2, 2011 - Volume 93 - Issue 3
pp: 225-317,e8-e11



Is a Subgroup Claim Believable?: A User’s Guide to Subgroup Analyses in the Surgical Literature

Sun, Xin; Heels-Ansdell, Diane; Walter, Stephen D.; More

JBJS. 93(3):e8, February 2, 2011.