Because of your headaches on how many Ds in the last 3Mo did you miss work or school:NRat:3Mo:^Patient:Qn:PhenX
because of your headaches on how many ds in the last 3mo did you miss work or school:nrat:3mo:^patient:qn:phenx
Because of your headaches on how many days in the last 3 months did you miss work or school [PhenX]
because of your headaches on how many days in the last 3 months did you miss work or school [phenx]