What is the capital
who is the president
bing bong let me take you out to dinner...
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Health, 22.06.2019 15:20
[120 total points] (public health) in one of the largest human experiments ever conducted, in 1954 a randomized controlled trial was run to see whether a vaccine developed by a doctor named jonas salk was effective in preventing paralytic polio. a total of 401,974 children (ages 6–9), chosen to be representative of those who might be susceptible to the disease, were randomized to two groups: 200,745 children (the control group c) were injected with a harmless saline solution (a placebo) and the other 201,229 children (the treatment group t) were injected with salk’s vaccine.what was the point of giving saline solution to the children who didn’t get the vaccine? explain briefly.
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Health, 23.06.2019 05:00
per vehicle mile, motorcyclists are times more likely to die in a crash than passenger car occupants.
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Health, 23.06.2019 13:40
Aguarantee about the product in writing from the manufacturer is called the ?
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