*0011631962
*008940701s1994    xx#           000 0 nob
*019  $bk
*08230$a614.5
*100  $aAlbrektsen, Grethe$_159768400
*245  $aThe dual effect of pregnancies on breast cancer risk : a prospective study of 800 000 parous Norwegian women$cGrethe Albrektsen, Ivar Heuch, Gunnar Kvåle
*300  $aS. 33
*520  $aAbstrakt
*700  $aHeuch, Ivar$_159768500
*700  $aKvåle, Gunnar$_130235600
*773  $tNorsk epidemiologi : suppl.$gÅrg. 4, suppl. 1 (1994)$x0803-4206$w(NO-LaBS)787491(tnr)
*999  $z9400176004$anorart:9400176004
^