NPI Number Lookup from NPI Registry for Physicians in all states of USA. Find NPI Number, EIN Number, Practice Address and Contact Details for all Doctors
Internal validity (Criterion 2.2) Apart from the assessment of representativeness, consideration should be given to the quality and accuracy of the data, as well as to potential systematic biases and how they may be avoided. 13 studies reflected on the accuracy of their indicators and/or recognize...