| 000 | 00424nam a2200133 a 4500 | ||
|---|---|---|---|
| 008 | 170703s1990#### cn||||f#|||||00| 0#uuu#d | ||
| 003 | AR-SmCIES | ||
| 024 | 8 | _aINFO-0376 | |
| 091 | _a37135 | ||
| 245 | 1 | 4 | _aThe selection and use of control groups in epidemiologic studies of radiation and cancer. |
| 260 |
_a[s.l.] : _b[s.n.], _c1990. |
||
| 999 |
_c16557 _d16557 |
||