1. Universidad de Concepción,Faculty of Engineering,Electrical Engineering Department,Concepción,Chile,4030000
2. Universidad de Concepción,Faculty of Biological Sciences,Ergonomics Department,Concepción,Bío Bío,Chile
3. Universidad de Santiago de Chile,Biomedical Engineering, Faculty of Engineering,Santiago,Chile,8320000
4. Universidad de Concepción,Faculty of Medicine,Kinesiology Department,Concepcion,Chile,4030000