| 000 | 00338nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 251112s9999||||xx |||||||||||||| ||und|| | ||
| 022 | _a0002-9262 | ||
| 040 | _aCNCLSA | ||
| 245 | 0 | _aAmerican Journal of Epidemiology | |
| 260 |
_c1986 _bThe Johns Hopkins University _aBaltimore |
||
| 300 | _aP. 1-1136 | ||
| 300 | _bV. 123 | ||
| 942 | _cJRBV | ||
| 999 |
_c31233 _d31233 |
||