1. Department of Animal Physiology, School of Veterinary Medicine, Complutense University of Madrid (UCM), 28040 Madrid, Spain
2. Department of Animal Medicine, Surgery and Pathology, School of Veterinary Medicine, Complutense University of Madrid (UCM), 28040 Madrid, Spain
3. Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
4. Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA