This is why you need randomised double blind controlled studies to define the causative agent.

There can never be a double blind study.

A small, double blind study was done in healthy humans to determine the analgesic effects.

Another way that Christian scholars can approach their education in a biblical manner is through "double study".

Scientific studies have shown mixed results in double blind studies of the diet.

Two hundred and five patients were studied in the multicentre four week double blind study.

Effect of coenzyme Q10 on essential hypertension, a double blind controlled study.

A few double blind studies in the field of clinical psychology relating to the treatment of severe dementia have been published.

Multiple double blind studies show venlafaxine's effectiveness in treating depression.

In the 2013 television show Orphan Black, cloning is used as a scientific double blind study on the behavioral adaptation of the clones.