A group of researchers was commissioned by the U.S. Department of Health and Human Services to examine data on the outcomes of Vietnam era soldiers who used heroin during their tours of duty in Vietnam
After reviewing the information, which of the following titles would be the most appropriate for their written report?
a) "Heroin: The downward slide is inevitable"
b) "Changed environments lead to changes in heroin use"
c) "Genetic predispositions to heroin cannot be overcome"
d) "Violence and heroin use: A legacy of the Vietnam era that will not go"
b
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Worldwide, how many children die each year from diseases for which vaccinations are available?
100,000 500,000 1–1.5 million 2–3 million
Masters and Johnson reported that unlike men, women:
a) can only achieve 1 orgasm in a 12 hour period. b) do not have a refractory period and can sometimes achieve many orgasms during a sexual encounter. c) need more stimulation to achieve an orgasm with oral sex. d) have a longer refractory period than men.