| 000 | 00865 a2200253 4500 | ||
|---|---|---|---|
| 005 | 20250515095321.0 | ||
| 264 | 0 | _c20080117 | |
| 008 | 200801s 0 0 eng d | ||
| 022 | _a1541-0048 | ||
| 024 | 7 |
_a10.2105/AJPH.2007.126847 _2doi |
|
| 040 |
_aNLM _beng _cNLM |
||
| 100 | 1 | _aSteckler, Allan | |
| 245 | 0 | 0 |
_aThe importance of external validity. _h[electronic resource] |
| 260 |
_bAmerican journal of public health _cJan 2008 |
||
| 300 |
_a9-10 p. _bdigital |
||
| 500 | _aPublication Type: Editorial | ||
| 650 | 0 | 4 |
_aPeriodicals as Topic _xstandards |
| 650 | 0 | 4 | _aPublic Health |
| 650 | 0 | 4 | _aResearch |
| 650 | 0 | 4 | _aValidation Studies as Topic |
| 700 | 1 | _aMcLeroy, Kenneth R | |
| 773 | 0 |
_tAmerican journal of public health _gvol. 98 _gno. 1 _gp. 9-10 |
|
| 856 | 4 | 0 |
_uhttps://doi.org/10.2105/AJPH.2007.126847 _zAvailable from publisher's website |
| 999 |
_c17563502 _d17563502 |
||