About the Authors
- Grażyna Guzy
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* E-mail: grazyna.guzy@fizjoterapia.eu
Affiliation Department of Physiotherapy, University of Physical Education, Cracow, Poland
- Romuald Polczyk
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Affiliation Institute of Psychology, Jagiellonian University, Cracow, Poland
- Malwina Szpitalak
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Affiliation Institute of Psychology, Jagiellonian University, Cracow, Poland
- Howard Vernon
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Affiliation Canadian Memorial Chiropractic College, Toronto, Canada
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: GG RP MS HV. Performed the experiments: GG. Analyzed the data: RP MS. Contributed reagents/materials/analysis tools: GG RP MS HV. Wrote the paper: GG RP MS HV.