Donald Hejna

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  • A C O M P A R I S O N O O P E N, T S Ctomy, +5 authors D W Hejna
  • 1999
Using data obtained by questionnaire in a retrospective review of pat sciatic pain (eighty-five treated i ents with low-back by injection of chy and 'rno-papain and seventy-one, by open discectomy), the results at one and ten years after treatment were analyzed. For this analysis we used six measures of pain relief, six measures of the patients' course(More)