| http://www.w3.org/ns/prov#value | - However, in a substantial number of seemingly immunocompetent patients, the reasons for dissemination are not clear.5 Attempts have been made to implicate environmental and hereditary factors.6,7 While several predisposing conditions such as HIV disease, steroid treatment, and diabetes have been well characterized, many patients with aggressive disease appear to be otherwise immunologically normal
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