Cite
MLA Citation
Christian T. Herbst et al.. “DigitalVHI—a freeware open-source software application to capture the Voice Handicap Index and other questionnaire data in various languages.” Logopedics, phoniatrics, vocology, vol. 40, 2015, pp. 70–74. http://access.bl.uk/ark:/81055/vdc_100025897654.0x00003e