Report from the 4th Calisia Conference on Family Health, Kalisz, Poland, 7-9 October 2024 - Leif E. Aarø; Kinga Janik-Koncewicz; Łukasz Gruszczyński; Mark Parascandola; Katarzyna Zatońska; Andrzej Wojtyła; Witold Zatoński (Journal of Health Inequalities)