How old were you when your menstrual periods began:Time:Pt:^Patient:Qn:PhenX
how old were you when your menstrual periods began:time:pt:^patient:qn:phenx
How old were you when your menstrual periods began:Time:Pt:^Patient:Qn:PhenX
how old were you when your menstrual periods began:time:pt:^patient:qn:phenx