Kringos, D., Boerma, W., Bourgueil, Y., Cartier, T., Dedeu, T., Hasvold, T., Hutchinson, A., Lember, M., Oleszczyk, M., Pavlick, D.R. Diversity of primary care systems analysed. In: Kringos, D.S., Boerma, W.G.W., Hutchinson, A., Saltman, R.B. Building primary care in a changing Europe. Kopenhagen: World Health Organization, 2015. 103-118