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The importance of external validity.

Steckler, Allan

The importance of external validity. [electronic resource] - American journal of public health Jan 2008 - 9-10 p. digital

Publication Type: Editorial

ISSN: 1541-0048

Standard No.: 10.2105/AJPH.2007.126847 doi

Subjects--Topical Terms:
Periodicals as Topic--standards
Public Health
Research
Validation Studies as Topic

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