Family physicians deliver a range of acute, chronic and preventive medical care services. In addition to diagnosing and treating illness, they also provide preventive care, including routine checkups, health-risk assessments, immunization and screening tests, and personalized counseling on maintaining a healthy lifestyle. Family physicians also manage chronic illness, often coordinating care provided by other subspecialists. Many American Family Physicians deliver babies and provide prenatal care. In the U.S., family physicians treat more patients with back pain than any other physician subspecialist, and about as many as orthopedists and neurosurgeons combined.