Answer a question about this article:
Mexico City is home to some of the best private hospitals in the country; Hospital Angeles, Hospital ABC and Medica Sur to name a few. The national public healthcare institution for private-sector employees, IMSS, has its largest facilities in Mexico Cityincluding the National Medical Center and the La Raza Medical Centerand has an annual budget of over 6 billion pesos. The IMSS and other public health institutions, including the ISSSTE (Public Sector Employees' Social Security Institute) and the National Health Ministry (SSA) maintain large specialty facilities in the city. These include the National Institutes of Cardiology, Nutrition, Psychiatry, Oncology, Pediatrics, Rehabilitation, among others.
What is an organization that has a large presence in the city?
National Health Ministry (SSA)