This book presents some of the results from the international research project “Impact on equity of access and efficiency of Integrated Health care Networks in Colombia and Brazil (Equity-LA)”. Equity-LA was funded by the European Union and had the participation of six institutions from Spain, Belgium, Colombia and Brazil. The project’s main objective was to understand the impact of implementing integrated health care networks on access, coordination, efficiency, and equity of access in different Latin American contexts. This study provided results, but also generated new questions that led to Equity LA II project (www.equity-la.eu). Currently undergoing and funded by the European Union, Equity LA II will include data from four additional countries in Latin America (Argentina, Chile, Mexico, and Uruguay) with the objective of broadening this understanding. The analyses described in this work refer exclusively to questions of access, coordination, continuity, and quality of care in health service networks, which are analyzed through a cases study, based on qualitative and quantitative data collected between 2009 and 2012.