@misc{indiciaeef4933a560a0, title = {Estimating respiratory pattern variability by symbolic dynamics.}, author = {P Caminal and J Mateu and M VallverdĂș and B Giraldo and S Benito and A Voss}, year = {2004}, url = {https://pubmed.ncbi.nlm.nih.gov/15026830/}, note = {Source identifier: 15026830} }