title: CD4 lymphopenia in elderly patients.
authors.forename: M
authors.initials: M
authors.lastname: McBride
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D018791:CD4 Lymphocyte Count; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D008297:Male; D011446:Prospective Studies; D018344:T-Lymphocytopenia, Idiopathic CD4-Positive / Q000453:epidemiology* / Q000209:etiology