Preliminary analyses regarding the age and sex distribution, the number of hospital admissions and drug use have shown the database to be adequately representative of information published in official statistics [ 25].
Preliminary analyses regarding the age and sex distribution, the number of hospital admissions, and drug use demonstrated that the database is generally representative of information published in official statistics [ 20].
High-discriminable information which is processed at the parallel stage of visual perception and fine-grained information which is processed via focal attention were selected as the representatives of perceptual information.
ASPEN is the most comprehensive and spatially representative source of information for all outdoor HAPs concentrations.
Given that for many such authorities the principal, nationally representative, source of information on BMI comes from self-reported measures, it is important to be clear about what adjustments should be made to these measures to obtain a more accurate signal of true BMI, and whether the adjustment should be uniform.
Since the ability in analyzing proliferation of viable CTCs has still been lacking, it is difficult to assess CTC information which is the representative of cellular information available in primary tumor.
Previous studies found that most physicians report frequent meetings with medical representatives and a substantial percentage of physicians rely heavily on medical representatives as sources of information about new drugs [ 2, 5, 6].
Selection bias occurs when the information that is available (the "sample") is not representative of all information about a particular subject ("the universe").
Registrars identified pharmaceutical representatives as sources of information and influence on their prescribing.
GPs were asked to fill in a thorough questionnaire about several topics, including their attitude to new drug prescribing, the number of visits by drug company representatives, the use of information sources on pharmacotherapy, and use of guidelines.
