1. Universidad de Las Americas, Facultad de Medicina, Quito, Ecuador
2. Intensive Care Unit, Ecuadorian Institute of Social Security (IESS), Babahoyo, Ecuador
3. Physiology and Respiratory-Center, Ecuador
4. Intensive Care Unit, Santa Maria Clinic, Guayaquil, Ecuador
5. Universidad Espíritu Santo, Samborondón, Ecuador
6. Universidad de Guayaquil, Facultad de Ciencias Médicas, Guayaquil, Ecuador
7. School for Oncology and Developmental Biology (GROW), University of Maastricht, Maastricht, Netherlands
8. School of Medicine, Universidad San Francisco de Quito, Quito, Ecuador