Is there any apparent bias in the literature review?

Kaewprom, C., Curtis, J., & Deane, F. P. (2011). Factors involved in recovery from schizophrenia: A qualitative study of Thai mental health nurses. Nursing & Health Sciences, 13, 323-327. Retrieved from the EBSCOhost database. This qualitative study.
Critique of a Research Study
Read the full texts of the study you selected in Week One and the sources you included in your Week Two bibliography. Evaluate each source and write a critique of the study using the textbook and articles from the Week Two assignment to support your evaluation. Use the following section headings and content in your paper.
Introduction
State the purpose of the paper. Clearly identify the study being critiqued, by title and authors. Summarize the research question, hypothesis (if a quantitative study), and background information on the topic from the study’s literature review. Did the authors present a well-balanced summary of current knowledge about the topic? Is there any apparent bias in the literature review?