Clinical Research is an important field, where in Researchers work on various new drug molecules and establishes its efficacy and safety. The major point to note here is that for efficacy and safety parameters data must be accurate and clean. If the data is not validated and accurate then it may have false results. Improving study data is critical and it should be done very carefully. The methods to do data cleaning include following

As we record patients data on CRF, so It is important that the data entered must be from source document and it’s the data must be
Clean
Clear
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