There are multiple definitions:

1. Comprehensive Assessment of Symptoms and History(English)

   • instrument for assessing diagnosis and psychopathology in schizophrenia and affective spectrum conditions
   • DSM
   • Psychology, Pathology, Mental health
   • https://doi.org….01820080023004

2. cruciform anterior spinal hyperextension(English)

   • TLSO
   • Biophysics, Spine (or spinal cord)
   • https://doi.org…47904-2.00013-1