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Health, 21.06.2019 22:30
The lower respiratory system includes the a. lungs. b. esophogus. c. larynx. d. pharynx
Answers: 2
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.
Answers: 2
Health, 22.06.2019 18:50
You should never drive a car if you are a.taking cold medication b. suffering from the flu c. drinking alcohol d. all the above
Answers: 1
Health, 22.06.2019 21:30
Can you receive a shock severe enough to prevent you from releasing the wire from an ordinary outlet with dry hands?
Answers: 1
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