title: Risks and benefits of postoperative cardiac catheterization in patients with ball valve prostheses.
mesh_terms: D000328:Adult; D000925:Anticoagulants / Q000627:therapeutic use; D006328:Cardiac Catheterization / Q000009:adverse effects*; D005260:Female; D006350:Heart Valve Prosthesis; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000601:surgery; D011446:Prospective Studies; D011859:Radiography; D012306:Risk
chemical_list: D000925:Anticoagulants