| 000 | 00336nam a2200121Ia 4500 | ||
|---|---|---|---|
| 001 | 28508 | ||
| 008 | 170722s9999 xx 000 0 und d | ||
| 100 | _aWitts, L. J. | ||
| 245 |
_aMedical surveys and clinical trials _bSome methods and applications of group research in medicine / |
||
| 250 | _a2nd ed. | ||
| 260 | _c1964. | ||
| 942 | _cGEN | ||
| 999 |
_c66821 _d66821 |
||