['Phagocytosis activity of peripheral blood leukocytes in smokers or chronic obstructive pulmonary disease patients was found to be controversial and dependent on the phagocytic stimulus.', 'We demonstrated that long-term exposure to cigarette smoke in mice clearly suppressed the phagocytosis of granulocytes and monocytes from peripheral blood.'] Does chronic inhalation of cigarette smoke reduce phagocytosis in peripheral blood leukocytes?