_:vb50951083 . _:vb50951083 . _:vb50951083 "A sarcoma that is located_in the skin."^^ . _:vb50951083 . _:vb50951083 "url:https://www.ncbi.nlm.nih.gov/pubmed/21146736"^^ . _:vb50951083 . _:vb50951083 .