[1] Natl & Kapodistrian Univ Athens, Sch Dent, Dent Oncol Unit, Dept Oral Pathol & Surg, Athens, Greece
[2] Natl & Kapodistrian Univ Athens, Sch Med, Dept Microbiol, Mycol Reference Lab, Athens 11528, Greece
[3] O Aghios Savas Hosp, Radiotherapy Dept 2, Athens 11522, Greece
[4] Natl & Kapodistrian Univ Athens, Aretaieion Univ Hosp, Sch Med, Dept Radiotherapy, Athens 11528, Greece
[5] Athinaion Hosp, Radiat Dept, Athens, Greece
[6] Hygeia Hosp, Dept Radiat Oncol, Athens 15123, Greece
[7] O Aghios Savas Hosp, Dept Maxillofacial Surg, Athens 11522, Greece