| 000 | 00315nas a22000977a 4500 | ||
|---|---|---|---|
| 008 | 170117s9999 xx 000 0 und d | ||
| 022 | _a0197-2456 | ||
| 245 |
_aControlled Clinical Trials _h[e-journal] |
||
| 260 | _bElsevier | ||
| 856 |
_uhttp://www.sciencedirect.com/science/journal/01972456 _yeSS consortium 1980 - 2004 |
||
| 999 |
_c550134 _d550134 |
||