1. ISEL,Health & Engineering Lab.,Lisbon,Portugal
2. ISEL, Comprehensive Health Research Centre, NMS,Health & Engineering Lab.,Lisbon,Portugal
3. ISEL, Research Group on Modelling and Optimization of Multifunctional Systems, ISEL,Health & Engineering Lab.,Lisbon,Portugal
4. CHULC, Comprehensive Health Research Centre, NMS,Intensive Care Department,Lisbon,Portugal
5. ISEL, Center for Mathematics and Applications, FCT, UNL,Department of Mathematics,Lisboa,Portugal