Public health surveillance statistics focus on illnesses, conditions, and diseases of human beings. What is another name for this type of statistics?

No impulse can cause depolarization during the ________ refractory period

A) original B) absolute C) relative D) impulse

What sign or symptom of a stroke is defined as the difficulty with or loss of language skills?

A) Aphasia B) Dysarthria C) Hemiparesis D) Ataxia