1. A study of the lower extremity;Buoel;Am. J. Phys. Med,1961
2. Amputees and their prostheses;Davies;Artif. Limbs,1970
3. Statistical study of 12, 000 new amputees;Glattly;South. Med. J,1964
4. Amputee survey, 1973–74: preliminary findings and comparisons;Kay;Orthot. Prosthet,1974
5. Functional capabilities of lower extremity amputees;Kegel;Arch. Phys. Med. Rehabil,1978