TY - RPRT TI - Changes in voice during a day in normal voices without vocal loading. AU - Marjanna Artkoski AU - Johanna Tommila AU - Anne-Maria Laukkanen PY - 2002 DO - 10.1080/140154302760834840 UR - https://pubmed.ncbi.nlm.nih.gov/12498352/ ID - 12498352 ER -