Aydin, Y. D., and A. Gurkan. “The Effect of Lavender Oil Inhalation on Pain, Anxiety, and Sleep Quality After Coronary Artery Bypass Graft: A Randomized Controlled Trial Protocol”. International Journal of Clinical Trials, vol. 9, no. 3, July 2022, pp. 197-04, doi:10.18203/2349-3259.ijct20221871.