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 6β9), 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 salkβs vaccine.what was the point of giving saline solution to the children who didnβt get the vaccine? explain briefly.
Answers: 2
Health, 23.06.2019 00:00
Which of the following must be treated under the care of a physician and is mainly considered a medical condition? a. scoliosis b. lordosis c. kyphosis d. all of the above
Answers: 1
Health, 23.06.2019 05:30
Aperson has had a good _ of life if they are still at the age of 95.
Answers: 2
describe modifiable and non-modifiable risk factors for CVD and cancer. Which habits should you conc...
Computers and Technology, 28.12.2019 16:31
Biology, 28.12.2019 16:31
Chemistry, 28.12.2019 16:31
Mathematics, 28.12.2019 16:31
Mathematics, 28.12.2019 16:31