Hospitals provide medical and surgical treatment to the sick and injured, including accommodations during the process. Hospitals also serve as the center for training healthcare professionals and conducting research. Hospitals also provide outpatient, emergency, psychiatric, and rehabilitation services to address various community needs. Hospitals are classified into several categories. The first classification is based on ownership. A public hospital is a nonprofit organization run by the government. Patients pay minimal or no cost for treatment even if they lack insurance. Private hospitals, on the other hand, may be for-profit or nonprofit organizations run by churches and other institutions. Here, most of the patients have healthcare plans or insurance. The second classification is based on the size and services provided. The sizes of the hospital differ based on bed availability, ranging from twenty beds in small hospitals to hundreds of beds in larger hospitals. Hospitals provide various services such as emergency care, intensive care, inpatient and outpatient services. Specialty hospitals provide specialized care that meets the needs of certain groups of patients, for example, neonatal care.