Article review on voice therapy technique

article that needs to be reviewed: 

https://www.uwo.ca/fhs/csd/ebp/reviews/2009-10/Hayes.pdf

instructions: 

-200 words 

-APA style 

***** perform a brief review of the literature and evidence (on the article posted above.).  Briefly describe study design, methodology, and number of participants.  Include a statement on the quality of the research.