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| 264 | 0 | _c19990622 | |
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_aNLM _beng _cNLM |
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| 100 | 1 | _aMorales Martínez, M E | |
| 245 | 0 | 0 |
_a[beta-Endorphins and the male reproductive system]. _h[electronic resource] |
| 260 |
_bGinecologia y obstetricia de Mexico _cApr 1999 |
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| 300 |
_a183-7 p. _bdigital |
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| 500 | _aPublication Type: English Abstract; Journal Article; Review | ||
| 650 | 0 | 4 | _aHumans |
| 650 | 0 | 4 | _aMale |
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_aNarcotics _xanalysis |
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_aPeptides _xanalysis |
| 650 | 0 | 4 |
_aSemen _xchemistry |
| 650 | 0 | 4 |
_abeta-Endorphin _xanalysis |
| 700 | 1 | _aPedrón, N | |
| 773 | 0 |
_tGinecologia y obstetricia de Mexico _gvol. 67 _gp. 183-7 |
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