linear heart rate icon from activity and hobbies outline collection. thin line heart rate on white background.

heart rate line icon vector health healthcare healthy heartbeat lifelineheart hearth healthbackgrounds outline linear stroke thin healthcareandmedicine healthylifestyle healthyliving hearthealth pulse medicine life monitor electrocardiogram medical wave cardiac cardiology care beat cardiogram sign graph ekg hospital rhythm ecg test emergency frequency cardio computer curve backgrounds chart blood analysis