1. A 24 year survey of amputees in Hong Kong;Chank;Prosthet. Orthot. Int,1984
2. Amputees and their prostheses;Da Vies;Art. Limbs,1970
3. Energy cost of ambulation in health and disability: a literature review;Fisher;Arch Phys. Med. Rehab,1978
4. A statistical study of 12,000 new amputees;Glattly;South. Med. J,1964
5. Syme amputation Bone;Herring;J. Joint Surg,1986