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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.
Answers: 2
Health, 22.06.2019 23:50
Which of the following describes the rooting reflex? a. a newborn turns the face toward a touch on the cheek in search of food. b. a newborn will automatically suck on objects placed in the mouth like a bottle. c. newborn immersed in water will display something like movement. d. newborn curls a hand around an object that touches the palm
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Health, 23.06.2019 10:30
Is psychology a science? use evidence form the article to explain you answer.
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Health, 23.06.2019 11:30
Which form of birth control good people use without altering hormonal systems are blocking sperm from fertilizing an egg
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Mathematics, 07.12.2019 23:31
History, 07.12.2019 23:31
Advanced Placement (AP), 07.12.2019 23:31
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Mathematics, 07.12.2019 23:31
Biology, 07.12.2019 23:31
English, 07.12.2019 23:31
History, 07.12.2019 23:31
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Spanish, 07.12.2019 23:31
Biology, 07.12.2019 23:31
Mathematics, 07.12.2019 23:31