How long have you known each other:Time:Pt:^Patient:Qn:The Position Generator
how long have you known each other:time:pt:^patient:qn:the position generator
How long have you known each other:Time:To identify measures at a point in time:^Patient:Quantitative:The Position Generator
how long have you known each other:time:to identify measures at a point in time:^patient:quantitative:the position generator