Krzyżanowska, Marta Olga, et al. “Is Compliance With Lifestyle Modifications Dependent on Sociodemographic Factors and Awareness of HF Symptoms? Impact of Lifestyle Changes on HF patients’ Wellbeing”. Journal of Medical Science, vol. 86, no. 2, June 2017, pp. 154-62, https://doi.org/10.20883/jms.2016.199.