Below are the reference sources used for the part 1. Let me know if you are able to access them in order to use for part 2 paper.
References:
Sherwood, Mcneill, Starck, & Disnard. (2003). Changing Acute Pain Management Outcomes in Surgical Patients. AORN Journal,77(2), 374,377,384,386,390,393-374,380,384,388,390,395.
Roy, Mathieu & Peretz, Isabelle & Rainville, Pierre. (2008). Emotional valence contributes to music-induced analgesia. Pain.134. 140-7. 10.1016/j.pain.2007.04.003.
Jafari, H., Zeydi, A. E., Khani, S., Esmaeili, R., & Soleimani, A. (2012). The effects of listening to preferred music on pain intensity after open heart surgery. Iranian Journal of Nursing and Midwifery Research, 17(1), 1–6
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