<unk>  is a rapidly evolving field and is of increasing importance as more people engage in hiking, climbing, kayaking, and other potentially hazardous activities in the backcountry. The modern definition of<unk>  is "medical care delivered in those areas where fixed or transient geographic challenges reduce availability of, or alter requirements for, medical or patient movement resources". A primary focus of the field is the evaluation, prioritization (triage), preliminary treatment of acute injuries or illnesses which occur in those environments and the emergency evacuation of victims. However, back country rescue and<unk>  first aid is not the sole activity of<unk>  medical professionals, who are also concerned with many additional topics. These include but are not limited to: * Secondary care follow up to first aid in remote settings, such as expeditions * Evaluation of experience and issuance of updated protocols for first response and secondary care * The prevention of<unk>  medical emergencies * Epidemiological studies * Public policy advisement to<unk>  planning agencies, and issuance of guidelines to disaster planning agencies, professional guides and amateur back country enthusiast organizations
Wilderness medicine
Concierge medicine
Sports nutrition
Chiral drugs
Anthroposophic medicine
Topological drugs
Chinese food therapy
Byzantine medicine