_:vb50952623 . _:vb50952623 "A rhabdomyosarcoma and sarcoma of the anus that is located_in the anus."^^ . _:vb50952623 . _:vb50952623 . _:vb50952623 . _:vb50952623 "url:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4422314/"^^ . _:vb50952623 .