A Large International Trial Recruited 7,000 Healthy Women and Randomly

Multiple Choice

A large international trial recruited 7,000 healthy women and randomly assigned them to receive either tamoxifen or a placebo. The women were followed for a number of years and the breast cancer rates were compared between the two groups. Neither the women nor the treating physicians knew which treatment the women were actually receiving. Which of the following does not apply to this study?

A) Randomized Experiment
B) Case-control study
C) Placebo Control
D) Double Blind