*Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY; and

†Department of Pathology & Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY.

Correspondence: Konstantinos Linos, MD, Department of Pathology & Laboratory Medicine, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065 (e-mail: [email protected]).

Supported by: MSK NIH Funded Grant# P30 CA08748.

The authors declare no conflicts of interest.