had a significantly decreased values for forced expiratory volume in one second (FEV1) peak expiratory flow rate (PEF) maximum midexpiratory flow (MEF) at 25%, 50%, and 75% compared to the group with the lowest exposure (
had a significantly decreased values for forcedexpiratory volume in one second (FEV1) peak expiratory flow rate (PEF) maximum midexpiratory flow (MEF) at 25%,50%, and 75% compared to the group with the lowest exposure (<25 mg/l • years).