Answers: 1
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, 22.06.2019 21:10, lealiastentz532542
Which of these is the best example of sexual objectification? a) a female initiates a conversation with another female. b) a male proposes marriage to a female. c) a female makes repated coments to a male about his appearence. d) a female proposes marriage to a male.
Answers: 1
Health, 23.06.2019 13:00, tredagoat20
Not type of personal health monitor can calculate the number of calories a person burns. true or false?
Answers: 1
Please please help me it's about tennis and the rules and I'm very confused I'll give you extra free...
Mathematics, 20.07.2019 19:00
Biology, 20.07.2019 19:00
Mathematics, 20.07.2019 19:00