1. Department of Otolaryngology–Head and Neck SurgeryJohns Hopkins Baltimore Maryland U.S.A.
2. Bloomberg‐Kimmel Institute for Cancer Immunotherapy, Johns Hopkins Baltimore Maryland U.S.A.
3. School of MedicineUniversity of Maryland Baltimore Maryland U.S.A.
4. Gilbert and Rose‐Marie Chagoury Health Sciences School of MedicineLebanese American University Byblos Lebanon