References
- Salmivalli A. Kuulonhuolto (Hearing care). Duodecim 1985; 101: 659–67.
- Statistics Finland. Population projection by municipality 1998–2030. Helsinki: Statistics Finland, 1998.
- Uimonen S, Huttunen K, Jounio-Ervasti K, Sorri M. Do we know the real need for hearing rehabilitation at the population level? Hearing impairments in the 5- to 75-year-old cross-sectional Finnish population. Br J Audiol 1999; 33: 53–9.