Here below are the publications (1) participated by Dominique E. Kuhlen using the term string nucleus (as cross-checked throughout PubMed, counted from 2020, including only Ticino affiliations).
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1) Efficacy of the Gelstix nucleus augmentation device for the treatment of chronic discogenic low back pain: protocol for a randomised, sham-controlled, double-blind, multicentre trial
BMJ Open, 30 marzo 2022