Title: The 13th rope
Subjects: Poliomyélite, Handicapés, Aircraft accident victims, Biographies, Ex-convicts, Patients, People with disabilities, Victimes d'accidents d'avion, Ex-détenus, Poliomyelitis, Global Disability Foundation, Biography
Places: Alberta, Calgary, Calgary (Alta.), Canada, Calgary (Alb.)
People: John Christensen (1941-)