The Army Medical Department of the U. S.
A combat medic is a highly trained medical professional who provides medical care in combat settings.
The Wikipedia page "Doctor of Medicine" provides a comprehensive overview of the professional degree awarded to medical practitioners around the world.
Environmental science is an interdisciplinary academic field that integrates physical, biological, and information sciences to the study of the environment and the solution of environmental problems.
A medical laboratory or clinical laboratory is a laboratory where tests are conducted out on clinical specimens to obtain information about the health of a patient to aid in diagnosis, treatment, and prevention of disease.
Physical therapy (PT), also known as physiotherapy, is a branch of healthcare that aims to enhance and restore physical function and movement in individuals who have been affected by injury, illness, or disability.
A podiatrist is a medical professional who specializes in the diagnosis, treatment, and prevention of conditions that affect the foot, ankle, and lower leg.
A surgeon is a medical professional who specializes in performing surgeries on patients.