title: Response to letter regarding "A systematic approach to subgroup analyses in a smoking cessation trial".
authors.affiliation: a Martingale Research Corporation , Plano , TX , USA.|b Department of Medicine , Loma Linda University School of Medicine , Loma Linda , CA , USA.
authors.forename: Steven S
authors.initials: SS
authors.lastname: Henley
authors.affiliation: b Department of Medicine , Loma Linda University School of Medicine , Loma Linda , CA , USA.|e Office of Academic Affiliations , Department of Veterans Affairs , Washington , DC , USA.
authors.forename: T Michael
authors.initials: TM
authors.lastname: Kashner
authors.affiliation: c School of Behavioral and Brain Sciences, University of Texas at Dallas , Richardson , TX , USA.
authors.forename: Richard M
authors.initials: RM
authors.lastname: Golden
authors.affiliation: d Departments of Psychiatry and Clinical Sciences , UT Southwestern Medical Center , Dallas , TX , USA.
authors.forename: Arthur N
authors.initials: AN
authors.lastname: Westover
mesh_terms: D003627:Data Interpretation, Statistical; D005260:Female; D006801:Humans; D008297:Male; D016032:Randomized Controlled Trials as Topic / Q000379:methods*; D016540:Smoking Cessation; D061485:Tobacco Use Cessation Devices