'The Sustainable Development Goals (SDGs) aim to create healthy lives and promote the well-being of all. There are challenges to ensuring that the most vulnerable populations, including women, children, and adolescents, are able to enjoy these outcomes. Much of their poor health is caused by poverty, gender, lack of education, and social marginalization as well as inaccessible healthcare services. Strong, equitable, and well-governed health systems can contribute to sustainably improving their lives. Such health systems – not health services – engage multisectorally with stakeholders to address the underlying causes of poor health and build quality, accessible, and affordable primary healthcare services.'--Executive Summary, p. ix.