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2. Spinal injuries in New Zealand rugby and rugby league − a twenty-year survey;Armour;N. Z. Medical J.,1997;
3. Rugby injuries to the cervical spine and spinal cord: a 10-year review;Scher;Clin. Sports Med.,1998;
4. Would you trust a surrogate respondent?;Gluud;Lancet,1997;
5. The value of postural reduction in the initial management of closed injuries of the spine with paraplegia and tetraplegia. Part 1;Frankel;Paraplegia,1969;