1. Ecuador. Faculty of Medical Science of the University of Guayaquil, Guayaquil, Ecuador 2 Ecuadorian Parenteral and Enteral Association. Ecuador
2. Universidad Espíritu Santo, Samborondón, 0901952, Ecuador
3. School of Medicine, Universidad Técnica Particular de Loja, Calle París, San Cayetano Alto, Loja 110101, Ecuador.
4. Ecuador. Faculty of Medical Science of the University of Guayaquil, Guayaquil, Ecuador
5. Hospital of the Ecuadorian Institute of Social Security. Ceibos Norte, Guayaquil, Ecuador
6. School of Physical Education, Sports and Recreation Av. Delta, Guayaquil 090510, Ecuador
7. Ecuador. Faculty of Medical Science of the University of Guayaquil, Guayaquil, Ecuador 2 Ecuadorian Parenteral and Enteral Association. Ecuador.