1. Frater RWM, Ellis FH Jr (1961) Problems in the development of a mitral-valve prosthesis. In: Merendino KA (ed) Prosthetic valves for cardiac surgery. Charles C Thomas Publisher, Springfield, IL, pp 244–265
2. Frater RWM, Berghuis J, Brown AL, Ellis FH Jr (1962) Autogenous pericardium for posterior mitral leaflet replacement. Surgery 84:260–268
3. Frater RWM(1962) Artificial heart valves. Lancet 2:1171
4. Frater RWM, Berghuis J, Brown AL, Ellis FH Jr (1963) Autogenous pericardium for posterior mitral leaflet replacement. Surgery 84:260–268
5. Frater RWM (1964) Anatomical rules for plastic repair of the diseased mitral valve. Thorax 19: 458