| http://www.w3.org/ns/prov#value | - Of the participants invited, 85 percent completed the supplementary questionnaire, including 135 WHS and 55 PHS participants with DES, and 250 WHS and 149 PHS participants without DES. Controlling for age, diabetes, hypertension and other factors, those with DES were more likely to report problems with reading, carrying out professional work, using a computer, television watching, driving during t
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