| http://www.w3.org/ns/prov#value | - According to a previous study performed by the authors with venous ulcer patients, with a mean age of 57 years, 35% were retired, 16.1% off work due to the ulcer, 2.5% receiving sick leave compensation, and 4.2% unemployed.5 All these factors are a burden to the health and social insurance systems, in addition to interfering in the patients' quality of life, due to the high costs of treatment, tim
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