Select an ICD-9-CM code for heartburn

An example of __________ is the thought that by donating one person's organs, many lives can be saved

a. utilitarianism b. egoism c. least harm d. Potter Box

What of the following primarily controls the phenomenon of hypoxic pulmonary vasoconstriction?

A. central chemoreceptors B. PAO2 C. PaO2 D. baroreceptors