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ISSN:1499-2027|43|3|126-135

Informa Healthcare‎(2004)‎

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By Sakari-Rantala Ritva   Era Pertti   Rantanen Taina   Heikkinen Eino   in Scandinavian Journal of Rehabilitation Medicine

ISSN:0036-5505|30|2|121-127

Informa Healthcare‎(1998)‎

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By Hietanen Anne   Era Pertti   Henrichsen Jorgen   Rosenhall Ulf   Sorri Martti   Heikkinen Eino   in International Journal of Audiology

ISSN:1499-2027|44|9|500-508

Informa Healthcare‎(2005)‎

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