Occupation in Medical Section

When I was a kid, I always think that the only person who can  help a patient is a doctor and I also think that one field has only one occupation. As time goes by I began to change my mindset and realizing that there are a lot of occupation in one field. Fun fact, occupational medicine was limited to the treatment of injuries and diseases occurring to production workers while at work. Over the years, this changed, with employees at plants, factories, and offices become qualifying for medical services. College or school health programs might be considered as extensions of occupational medicine. Moreover, there are at least three kind of jobs in medical section according to their own specialty on their job such as, doctor, nurse and midwife.