Zwierzyńska, A.; Gruszka, J.; Urbańczyk, K.; Detka, K.; Adamczyk-Gruszka, O. Assessment of the Level of Knowledge about Health Behaviors and Puerperium of Various Social Groups in the Świętokrzyskie Voivodeship During the Covid-19 Pandemic. J Educ Health Sport 2022, 12, 56-68.