Have you ever been exposed to gas or chemical fumes in your work:Find:Pt:^Patient:Ord:PhenX
have you ever been exposed to gas or chemical fumes in your work:find:pt:^patient:ord:phenx
Have you ever been exposed to gas or chemical fumes in your work:Finding:To identify measures at a point in time:^Patient:Ordinal:PhenX
have you ever been exposed to gas or chemical fumes in your work:finding:to identify measures at a point in time:^patient:ordinal:phenx