title: The use of TDMAC-heparin shunt in the closure of a calcified patent ducts arteriosus.
mesh_terms: D001807:Blood Vessel Prosthesis; D002114:Calcinosis / Q000150:complications; D004374:Ductus Arteriosus, Patent / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D005260:Female; D006493:Heparin; D006801:Humans; D008875:Middle Aged; D000644:Quaternary Ammonium Compounds
chemical_list: D000644:Quaternary Ammonium Compounds; C009543:tridodecylmethylammonium; D006493:Heparin