His work integrates critical perspectives in the study and transformation of health inequalities. He has studied the judicialization of health care, social mobilization for the right to health, insurance/administrative barriers to access health services, and the transformation of medical practice and medical education within the context of the neoliberal health care reform in Colombia. His current book project examines the defunding, closure and privatization of Colombia’s most legendary child and maternity university hospital. He is also the author of Children Subjectivities, AIDS and Social Responses in Brazil.