Primary because it is non-volatile storage
An LDS must have all direct identifiers removed.
According to the HIPPA policy, a Limited Data Set (LDS) is a kind of data set in which direct identifiers are removed.
Limited Data Set (LDS) is a set of data that can be used for research purposes under the HIPPA policy without any authorization from the patient. However, this kind of data ensures that any kind of identifier information such as the patient's name, relative's name, address, number etc is not shared and not made a part of the research.
Limited Data Set (LDS) shows common information like age, city, and gender information from the data.
The Limited Data Set (LDS) is available to only those researchers with whom the data use agreement has been signed.
To learn more about Limited Data Set (LDS), click here:
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The Andromeda Galaxy would be my answer.
Portrait, as well as 100 percent scale.
