Department of Cardiology;
Mejiro Hospital;
Tokyo;
Japan;
Department of Orthopaedic Surgery;
Juntendo University Nerima Hospital;
Tokyo;
Japan;
Department of Orthopaedic Surgery;
Mejiro Hospital;
Tokyo;
Japan;
Institute of Sasaki Foundation;
Kyoundo Hospital;
Department of Orthopaedic Surgery;
Tokyo;
Japan;