title: Tracheostomy and subclavian catheterizations.
mesh_terms: D001458:Bandages; D002404:Catheterization / Q000379:methods*; D006801:Humans; D011140:Polyurethanes; D013350:Subclavian Vein; D014140:Tracheotomy / Q000379:methods*
chemical_list: D011140:Polyurethanes