ALT.280
How much do you think high dose or megavitamin therapy helped your (display for each condition)?
Would you say a great deal, some, only a little, or not at all?
VITHELP1
VITHELP2
VITHELP3
(1) A great deal
(2) Some
(3) Only a little
(4) Not at all
(7) Refused
(9) Don't know