Survey Text

1991
1989
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1991
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c. Was this the first time you had this treatment?

1[] Yes
2[] No
9[] DK

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1989
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19a. Have you ever had laser or photocoagulation treatment for this problem?

1[] Yes
2[] No (20)
9[] DK (20)

b. Did you receive this treatment within the past 12 months?

1[] Yes
2[] No (20)
9[] DK (20)

c. Was this the first time you had this treatment?

1[] Yes
2[] no
9[] DK