title: In reply to 'etiological versus prognostic models in cohort studies' and 'nutritional supplement use in hemodialysis patients'.
authors.affiliation: Tufts Medical Center, Boston, Massachusetts.
authors.forename: Daniel E
authors.initials: DE
authors.lastname: Weiner
authors.affiliation: Tufts Medical Center, Boston, Massachusetts.
authors.forename: Hocine
authors.initials: H
authors.lastname: Tighiouart
mesh_terms: D004044:Dietary Proteins / Q000008:administration & dosage*; D019587:Dietary Supplements; D005260:Female; D006801:Humans; D008297:Male; D006435:Renal Dialysis / Q000401:mortality*
chemical_list: D004044:Dietary Proteins