Answers: 3
Health, 22.06.2019 15:20, timozy95
[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, 23.06.2019 15:00, fatherbamboo
Complete each statement about nutrition. a good strategy for meeting the nutrient needs of an infant is to . vitamin d during childhood is an important nutrient to .
Answers: 3
Health, 23.06.2019 23:00, anoyinpokep3c3sg
The three parts of the health triangle need to be and
Answers: 2
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