About the Authors
Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, United States of America
Unidad de Investigacion, Hospital Universitario de Canarias, Tenerife, Spain
The authors have declared that no competing interests exist.
Conceived and designed the experiments: RF RSW PEC. Performed the experiments: JKH SM GB XS AM PEC. Analyzed the data: JKH PEC. Contributed reagents/materials/analysis tools: PLB RF. Wrote the paper: JKH GB RSW PEC.