During the last 48H, the study period, have you operated or been near diesel engines, e.g. bus terminal, truck stop:Find:48H:^Patient:Ord:RIOPA
during the last 48h, the study period, have you operated or been near diesel engines, e.g. bus terminal, truck stop:find:48h:^patient:ord:riopa
During the last 48 hours, the study period, have you operated or been near diesel engines, e.g. bus terminal, truck stop [RIOPA]
during the last 48 hours, the study period, have you operated or been near diesel engines, e.g. bus terminal, truck stop [riopa]