a study in which the participants are assigned by chance to separate groups that compare different treatments; neither the researchers nor the participants can choose which group. using chance to assign people to groups means that the groups will be similar and that the treatments they receive can be compared objectively. at the time of the trial, it is not known which treatment is best. it is the patient's choice to be in a randomized trial.
Currently conducting clinic trials.
the examination system
examination for entrance into a certain class
during the examination
the examination of a thesis
an examination for service
to go through an examination