Trzaska, Małgorzata, Marianna Charzyńska-Gula, Natalia Guźla, and Eliza Rutkowska. “The Issue of Active and Passive Smoking in a Selected Group of Pregnant Women”. Journal of Education, Health and Sport 8, no. 9 (August 31, 2018): 490–503. Accessed April 24, 2024. https://apcz.umk.pl/JEHS/article/view/5887.