title: Author response.
authors.forename: Patricia
authors.initials: P
authors.lastname: Sheean
authors.forename: Carol
authors.initials: C
authors.lastname: Braunschweig
authors.forename: Sarah
authors.initials: S
authors.lastname: Peterson
mesh_terms: D001823:Body Composition; D005260:Female; D006801:Humans; D008297:Male; D018482:Muscle, Skeletal; D009752:Nutritional Status; D012131:Respiratory Insufficiency / Q000150:complications*; D055948:Sarcopenia / Q000453:epidemiology*