The answer is pluralism.
Completing the sentence:
The fact that the farmers have more influence over agricultural price-supports than do other groups is an example of pluralism.
Quick definition:
Pluralism is the holding of two or more offices or positions at the same time. Pluralism is not diversity alone, but the energetic engagement with diversity.
One physician assisted examination, routine, is say a yearly visit to the cardiologist to examine one's heart after heart valve repair and involves talking to the patient, re shortness of breath or heart pain and also listening to the heart with the stethoscope or if necessary getting a cardiogram or ultrasound or stress done.
One of the most common methods to date volcanic rocks uses potassium radioactive parent and argon stable daughter).