| http://www.w3.org/ns/prov#value | - It is thought that cytokines, such as TGF-beta, elaborated by lymphocytes during the active phase of the disease, leads to fibrosis and sclerosis around the bile ducts.[14]Seventy-five percent of children with sclerosing cholangitis will not respond to chemotherapy because the LCH is no longer active, but the fibrosis and sclerosis remain.
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