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Accurate measurement of personal exposure to particulate matter and its constituents requires samplers that are accurate, compact, lightweight, inexpensive, and convenient to use. The personal particulate organic and mass sampler (PPOMS) has been developed to meet these criteria. The PPOMS uses activated carbon-impregnated foam as a combined 2.5-microm(More)
Fibronectin (FN) and hyaluronan (HA) in bronchoalveolar lavage fluid (BALF) and FN released by alveolar macrophages (AM) were examined in 7 nonsmoking healthy control subjects, and 20 smoking patients with chronic obstructive pulmonary diseases (COPD). All patients and subjects were no more than 40 years old. According to the 95% confidence limits of HA and(More)
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