Endoscopic sinus surgery / Anterior skull base surgery / Functional rhinoplasty / Endolaryngeal microsurgery, phonosurgery / Laser microsurgery of the larynx / Management of head & neck tumors / Total ant partial laryngectomy / Complete clinical audiological assessment (TEOAE, DPOAE, BERA, ASSR, BOA) / Middle ear surgery: tympanoplasty, ossiculoplasty, stapedoplasty / Hearing implantable technologies / Diagnostics and surgical treatment of snoring and obstructive sleep apnea / Contemporary clinical assessment of vestibular system (VNG, cVEMP, oVEMP, VEP, BERA)