Sentence examples for controls is required from inspiring English sources

To scientifically establish a causal relationship between drug therapy and rare side effects, repeated rechallenging with masked controls is required.

In the effort to conserve energy and reduce environmental impacts, an efficient design tool for the analysis, evaluation and comparison of the performance of alternative system designs and controls is required.

While these prior studies are encouraging, a larger study with a more comprehensive group of ALS-mimic disease controls is required in order to verify prior results and determine if CSF cystatin C levels represent a candidate diagnostic biomarker for ALS.

Serial dilution of controls is required for competitive RT-PCR.

A prospective trial comparing phaco ECP with phaco-only controls is required to truly answer the question.

A Southern blot with superior resolution and appropriate size standards or controls is required to distinguish between these possibilities.

Very few controls are required to perform any function.

Under present law, modern pollution controls are required whenever an upgrade would result in increases in annual emissions.

The response is immediate because no mechanical couplings or controls are required.

Later, he came to realise that general price controls were required, and, with President Roosevelt's backing, they were introduced in April 1942, with astonishing success.

That year, more sophisticated engine controls were required, making it more likely their systems could detect and compensate for fuel variations.