<unk>  is<unk>  related to the practice of being a<unk>  practitioner, either the initial training to become a doctor or further training thereafter (including residency).<unk>  and training varies considerably across the world. Various teaching methodologies have been utilised in<unk> , which is an active area of<unk> al research.
Medical education
Health promotion
Mobile health
Clinical engineering
Preventive medicine
Health care
Community health
Health care informatics