Multi-Society Task Force on PVS (May 1994). "Medical aspects of the persistent vegetative state (1)". N. Engl. J. Med.330 (21): 1499–508. doi:10.1056/NEJM199405263302107. பப்மெட்:7818633.
Multi-Society Task Force on PVS (May 1994). "Medical aspects of the persistent vegetative state (1)". N. Engl. J. Med.330 (21): 1499–508. doi:10.1056/NEJM199405263302107. பப்மெட்:7818633.