Instrument Variable Name: AVT_R7A
*Read if necessary.
Did you use [fill: 1st vitamin] for any of these reasons?
...To improve immune system function?
9 Don't know
Universe Text: Sample adults 18+ who have chosen one or two vitamins from AVITTAKE or selected two vitamins at AVT_TOP2
(1,2,Refused,Don't know) [goto AVT_R8A]