In the last 3Y, how many such illnesses, with increased phlegm, did you have which lasted a W or more:NRat:3Y:^Patient:Qn:PhenX
in the last 3y, how many such illnesses, with increased phlegm, did you have which lasted a w or more:nrat:3y:^patient:qn:phenx
Chest illness phlegm > W 3Y nRate PhenX
chest illness phlegm > w 3y nrate phenx