doctor-patient relation vs patient

doctor-patient relation and patient both are nouns.

Word	Noun	Adjective	Verb	Adverb
doctor-patient relation	Yes	No	No	No
patient	Yes	Yes	No	No

doctor-patient relation (noun)	patient (noun)
the responsibility of a physician to act in the best interests of the patient	the semantic role of an entity that is not the agent but is directly involved in or affected by the happening denoted by the verb in the clause
	a person who requires medical care

doctor-patient relation (adjective)	patient (adjective)
	enduring trying circumstances with even temper or characterized by such endurance