Niedorys, Barbara, et al. “Health Literacy – a Review of Research Using the European Health Literacy Questionnaire (HLS-EU-Q16) in 2010-2018”. Nursing in the 21st Century, vol. 19, no. 1(70), May 2020, pp. 29-41, https://doi.org/10.2478/pielxxiw-2020-0001.