[Efficiency of alveolar ventilation and hematosis during work in subjects of advanced age].
D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D019069:Cell Respiration; D006801:Humans; D012119:Respiration; D014937:Work
AGING/physiology; RESPIRATION/in old age