Techniques for delivering medical care by improving decision making skills of medical personnel who deliver the care include receiving normal data that indicates normal conditions in a patient. Abnormality data is received from an author and indicates an abnormal condition in a patient. An instance of a virtual patient is generated based on the normal data and the abnormality data. The instance describes a sufficiently comprehensive physical state of a patient having the abnormal condition to simulate clinical measurements of the patient's condition. Action data is received from a trainee who is different from the author. Action data indicates a requested action relevant to dealing with the instance. Response data is generated based on the action data and the instance. Display data is presented to the trainee based on the response data. The display data indicates information about the instance available as a result of the requested action.