TY - GENERIC DO - 10.20944/preprints202305.1671.v1 UR - http://dx.doi.org/10.20944/preprints202305.1671.v1 TI - Comparison of Portable Oxygen Concentrators and Inspired Oxygen Levels Using a COPD Patient Simulation Model T2 - Preprints AU - Gardenhire, Douglas S. S AU - Murray, Robert B AU - Gardenhire, Robin E AU - Brandenberger, Kyle PY - 2023 DA - 2023/05/24 PB - Preprints