title: Clearing obstructed drainage tubes.
mesh_terms: D002404:Catheterization / Q000009:adverse effects*; D004322:Drainage / Q000295:instrumentation*; D006801:Humans; D013299:Streptodornase and Streptokinase / Q000008:administration & dosage*
chemical_list: D013299:Streptodornase and Streptokinase