Foot and ankle orthopaedic surgery is a specialized subfield of orthopaedics that focuses on the diagnosis, treatment, and prevention of disorders and injuries of the foot and ankle.

Gastroenterology is a branch of medicine focusing on the digestive system and its disorders.

Environmental Medicine focuses on the health effects of environmental pollutants, including the study of how environmental toxicants affect human health, as well as the prevention and treatment of environmental-related illnesses.

Endovascular neurosurgery is closely related to other medical specialties, such as neurology, radiology, interventional cardiology, and interventional radiology. 

Epidemiology is the branch of medicine that deals with the study of the distribution, transmission, and control of diseases in a population.

Emergency nursing is a nursing subspecialty focused on providing immediate clinical attention due to an acute or life-threatening illness or injury.

Emergency psychiatry is a subspecialty of psychiatry that focuses on the diagnosis, assessment and treatment of mental health disorders.

Endocrine surgery is a specialized field of surgery that focuses on the diagnosis, management and surgical treatment of diseases related to the body’s endocrine system.

Echocardiography is a noninvasive medical imaging technique used to assess the structure and function of the heart.

EMT (EMS) is a field of healthcare that focuses on responding to medical emergencies and providing pre-hospital care.

Dialysis nursing is a specialized area of nursing that focuses on caring for patients with kidney diseases and conditions that require dialysis treatments.

Dentistry focuses on the prevention, diagnosis, and treatment of diseases, disorders, and conditions of the oral cavity, including the teeth and gums.

Cytopathology is a branch of pathology that deals with the examination of cells and tissues for malignancy and other abnormalities.

Dermatopathology focuses on the diagnosis and treatment of skin diseases. It is a specialty within both the field of pathology and the field of dermatology.