Water-based exercise is more effective than land-based exercise for people with COPD and physical comorbidities.

@article{Wadell2014WaterbasedEI,
  title={Water-based exercise is more effective than land-based exercise for people with COPD and physical comorbidities.},
  author={Karin Wadell},
  journal={Journal of physiotherapy},
  year={2014},
  volume={60 1},
  pages={57}
}