Validation and Classification of the 9-Item Voice Handicap Index (VHI-9i)

by Felix Caffier, Tadeus Nawka, Konrad Neumann, Matthias Seipelt, Philipp P. Caffier
Published 2021-07-01

Pathology-Related Influences on the VEM: Three Years’ Experience since Implementation of a New Parameter in Phoniatric Voice Diagnostics

by Constanze Müller, Felix Caffier, Tadeus Nawka, Matthias Müller, Philipp P. Caffier
Published 2020-01-01

Monitoring the Outcome of Phonosurgery and Vocal Exercises with Established and New Diagnostic Tools

by Matthias Seipelt, Andreas Möller, Tadeus Nawka, Ute Gonnermann, Felix Caffier, Philipp P. Caffier
Published 2020-01-01

The Vocal Extent Measure: Development of a Novel Parameter in Voice Diagnostics and Initial Clinical Experience

by Philipp P. Caffier, Andreas Möller, Eleanor Forbes, Constanze Müller, Marie-Louise Freymann, Tadeus Nawka
Published 2018-01-01

T1a Glottic Cancer: Advances in Vocal Outcome Assessment after Transoral CO₂-Laser Microsurgery Using the VEM

by Wen Song, Felix Caffier, Tadeus Nawka, Tatiana Ermakova, Alexios Martin, Dirk Mürbe, Philipp P. Caffier
Published 2021-03-01