bearer_of has characteristic has_participant has participant Homo sapiens planned process physician role medical direction to emergency medical services A planned process that involves a physiscian and an agency providing prehospital care or transport of the sick and wounded and the physisican provides input regarding patient care and planning and operation of the service from a medical perspective. A planned process that involves a physiscian and an organization providing prehospital care and transport of the sick and wounded in which the physician provides input regarding patient care and evaluating performance of the service and individual providers of care . Mathias Brochhausen emergency medical services agency