CD4+ T-lymphocytopenia in the elderly.
Calderón
E
E
Sánchez
B
B
Medrano
F J
FJ
Stiefel
P
P
Leal
M
M
D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000276:immunology*; D006801:Humans; D009894:Opportunistic Infections / Q000276:immunology; D018344:T-Lymphocytopenia, Idiopathic CD4-Positive / Q000453:epidemiology* / Q000276:immunology*