Czenczek-Lewandowska, E., Wyszyńska, J., Leszczak, J., Baran, J., Weres, A., Mazur, A., & Lewandowski, B. (2021). Health behaviours of young adults during the outbreak of the Covid-19 pandemic - a longitudinal study. BMC Public Health, 21(1), 1038. https://doi.org/10.1186/s12889-021-11140-w (Original work published 2021)