A study on the application of the perceptual assessment in the diagnosis of the velopharyngeal function

Yin Heng, Ma Li, Shi Bing, Guo Chunli, Zhao Shufan, Li Yang

West China Journal of Stomatology . 2012, (2): 197 -200 . DOI: 10.3969/j.issn.1000-1182.2012.02.021