I want to know the answer to the following question:
How many hospitals belong to the Medical Center group of organizations?
All the background I'm provided with is that "Employing more than 73,600 people, institutions at the medical center include 13 hospitals and two specialty institutions, two medical schools, four nursing schools, and schools of dentistry, public health, pharmacy, and virtually all health-related careers.". Is that enough to answer the question?
Answer: yes