The average smoker will die how many years earlier than nonsmokers?

Substance P is an example of a(n):

a. Neuropeptide neurotransmitter b. Amino acid neurotransmitter c. Amine neurotransmitter

Compared to a hospital computerized system for ordering laboratory tests, a manual (paper) system would be more:

a. efficient. b. cost effective. c. prone to transcription mistakes. d. prone to accounting mistakes.