Variable | Year | Supplement |
---|---|---|
PAID99_1 | 1990 | Assistive devices |
PAID99_2 | 1990 | Assistive devices |
PAID99_3 | 1990 | Assistive devices |
PAID99_4 | 1990 | Assistive devices |
PAID99_5 | 1990 | Assistive devices |
PAID99_6 | 1990 | Assistive devices |
PAID99_7 | 1990 | Assistive devices |
PAID99_8 | 1990 | Assistive devices |
PAID99_9 | 1990 | Assistive devices |