1. Ackery A, Tator C, Krassioukov A . A global perspective on spinal cord injury epidemiology. J Neurotrauma 2004; 21: 1355–1370.
2. Wyndaele M, Wyndaele J-J . Incidence, prevalence and epidemiology of spinal cord injury: what learns a worldwide literature survey? Spinal Cord 2006; 44: 523–529.
3. Spinal cord injury investigating group in Beijing. The reviewing survey for spinal cord injury in Beijing between 1982–1986. J Ch rehabil 1988; 3: 59–62 (Chinese).
4. Statistical Bureau of Beijing. Statistical Yearbook of Beijing 2003, Vol 6. Statistical Publishing House of Beijing: Beijing, 2003, pp 58, 74, 285, 391, 416, 479, 484, 494 (in Chinese).
5. Statistical Bureau of Beijing. Social and Economic Statistical Yearbook of Beijing 1987, Vol 9. Statistical Publishing House of Beijing: Beijing, 1987 p 1359 (in Chinese).