What level of Evidence based practice (hierarchy ) does the attached article : "A qualitative study of patient perspectives about hypertension "fall under using the Figure 2.1 on page 25 in the text book called:
Polit, D. F., & Beck, C. T. (2012). Nursing research: Generating and assessing evidence for nursing practice (9th ed.). Philadelphia, PA: Wolters Kluwer Health/Lippincott Williams & Wilkins.