1. Clinical Laboratory Department Hospital Infantil de México Federico Gómez Mexico City Mexico
2. Hematopoietic Stem Cell Transplantation Unit Hospital Infantil de México Federico Gómez Mexico City Mexico
3. Sub‐directorate of Auxilliary Services and Diagnosis Hospital Infantil de México Federico Gómez Mexico City Mexico
4. Investigación Directora de Enseñanza e Investigación Laboratorios Ruiz Puebla Puebla Mexico
5. Molecular Biomedicine CINVESTAV Mexico City Mexico
6. Facultad Ciencias de la Salud Universidad Anáhuac Mexico City Mexico
7. Immunology Laboratory Hospital Nacional Homeopático Mexico City Mexico