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| 041 | _aeng | ||
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| 245 | 1 | 0 | _aTHE IMPACT OF DEMOGRAPHIC TRENDS ON HEALTH |
| 650 | 1 | 4 | _aDatos estadÃsticos |
| 650 | 1 | 4 | _aMorbilidad |
| 650 | 1 | 4 | _aMortalidad |
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| 653 | 1 | 0 | _aAcción social |
| 655 | 4 | _aDocumental | |
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_tWORLD HEALTH STATISTICS QUARTERLY _gVol. 40, no. 1 (1987), p. 96 |
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