1. Kovindha A. Spinal cord injuries in Maharaj Nakorn Chiang Mai Hospital: 5 years retrospective study. Chiang Mai Med Bull. 1985;24:179–85.
2. Kovindha A. A retrospective study of spinal cord injuries at Maharaj Nakorn Chiang Mai Hospital, during 1985–1991. Chiang Mai Med Bull. 1993;32:85–92.
3. Pajareya K. Traumatic spinal cord injuries in Thailand: an epidemiologic study in Siriraj Hospital, 1989–1994. Spinal Cord. 1996;34:608–10.
4. Kuptniratsaikul V. Epidemiology of spinal cord injuries: a study in the Spinal Unit, Siriraj Hospital, Thailand, 1997–2000. J Med Assoc Thai. 2003;86:1116–21.
5. Kovindha A. People with spinal cord injury in Thailand. Am J Phys Med Rehabil. 2017;96:S120–3.