Research on the effectiveness of lithium treatment is challenging because ____
a. ?therapeutic levels are established very quickly
b. ?it is no longer viewed as an appropriate treatment
c. ?there is extreme variability in people’s absorption of lithium
d. ?it is so quickly and profoundly addictive
ANSWER:
c
Psychology
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The leading cause of death and disability in the United States is ________
a. coronary heart disease b. accidents c. cancer d. AIDS
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