Breathing Pattern Estimation Using Wearable Bioimpedance for Assessing COPD Severity. - Dolores Blanco-Almazán; Willemijn Groenendaal; Lien Lijnen; Rana Önder; Christophe Smeets; David Ruttens; Francky Catthoor; Raimon Jané (IEEE J. Biomed. Health Informatics, 2022)