[1] Univ Chicago, Med Scientist Training Program, Chicago, IL 60637 USA
[2] Univ Chicago Med, Dept Surg, Sect Otolaryngol Head & Neck Surg, Chicago, IL 60637 USA
[3] Univ Chicago, Howard Hughes Med Inst, Dept Chem, Chicago, IL 60637 USA
[4] Univ Chicago, Howard Hughes Med Inst, Inst Biophys Dynam, Chicago, IL 60637 USA
[5] Univ Chicago Med, Dept Med, Sect Hematol Oncol, Chicago, IL 60637 USA