Mathematics, 27.12.2019 07:31 Blaise2653
Test the efficacy of vitamin c in preventing colds, army recruits are randomly assigned to one of two groups: one in which 500 mg of vitamin c is administered daily, and one in which 500 mg of a placebo is administered daily. both groups are followed to determine the number and severity of subsequent colds. what type of study design is this?
cross-sectional study
case-control study
prospective cohort study
historical prospective cohort study
clinical trial
community trial
Answers: 1
Mathematics, 21.06.2019 21:20
Find the distance from the theater to the library. leave your answer in simplest radical form if necessary. 12 √12 74 √74
Answers: 2
Mathematics, 21.06.2019 23:00
Which graph represents the linear function below? y-3=1/2(x+2)
Answers: 2
Mathematics, 21.06.2019 23:20
The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol
Answers: 2
Mathematics, 21.06.2019 23:40
If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer
Answers: 1
Test the efficacy of vitamin c in preventing colds, army recruits are randomly assigned to one of tw...
Mathematics, 09.03.2021 01:00
Mathematics, 09.03.2021 01:00
Mathematics, 09.03.2021 01:00
Geography, 09.03.2021 01:00
Mathematics, 09.03.2021 01:00
Mathematics, 09.03.2021 01:00
English, 09.03.2021 01:00
Mathematics, 09.03.2021 01:00
Mathematics, 09.03.2021 01:00
Mathematics, 09.03.2021 01:00