Results showed a significant improvement in the iron, iodine and vitamin A status of these children compared to a control group. |
Researchers tested their SARS vaccine on four African green monkeys, with another four in the control group. |
Collection of the control group was essential for the evaluation of seropositivity among the general female population. |
Dr Duncan found that only one of the groups, the third group, showed any apparent effect in comparison with the control group. |
Table 4 shows the relative mortality of this group of patients compared with the control group. |
The possibly calming effect of having family present for the control group during the intervention could have played a part in the reaction. |