Prostheses and Implants Diseases 3 Equipment and Supplies 3 Surgical Procedures, Operative 3 Cardiovascular Diseases 2 Diagnostic Techniques and Procedures 2 Implants, Artificial 2 Prosthesis 2 Rehabilitation 2 Rehabilitation Research 2 Self-Help Devices 2 Biomedical Engineering 1 Biomedical and Dental Materials 1 Biomedical engineering 1 Brain Diseases 1 Cardiac Pacing, Artificial 1 Cardiac pacing 1 Cardiovascular Surgical Procedures 1 Central Nervous System Diseases 1 Cerebrovascular Disorders 1 Cerebrovascular disease 1 Chemical Actions and Uses 1 Congestive heart failure 1 Defibrillators 1 Defibrillators, Implantable 1 Disability Studies 1 Disabled Persons 1 Electric Stimulation Therapy 1 Electrical Equipment and Supplies 1 Electrodes 1