Mohamed, Nor F., Siti R. Ghazali, Nor A. Yaacob, Aizai A. A. Rahim, and Oteh Maskon. 2019. “Development and Validation of a Cross-Cultural Heart Failure-Specific Quality of Life Questionnaire”. Sultan Qaboos University Medical Journal 18 (4):e494-500. https://doi.org/10.18295/squmj.2018.18.04.011.