title: CD4/CD8 ratio and lung cancer risk - Authors' reply.
authors.affiliation: Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA. Electronic address: keith.sigel@mssm.edu.
authors.forename: Keith
authors.initials: K
authors.lastname: Sigel
authors.affiliation: Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT, USA.
authors.forename: Robert
authors.initials: R
authors.lastname: Dubrow
mesh_terms: D016516:CD4-CD8 Ratio; D015496:CD4-Positive T-Lymphocytes; D015658:HIV Infections; D006801:Humans; D008168:Lung; D008175:Lung Neoplasms