*0011544646
*008891031s1989    xx#           000 0 nob
*019  $bk
*08230$a617.6
*100  $aEriksen, Harald M.$_130030700
*245  $aKronisk apikal periodontitt$cHarald M. Eriksen
*300  $aS. 570-573
*773  $tDen norske tannlegeforenings tidende$gÅrg. 99, nr 15 (1989)$x0029-2303$w(NO-LaBS)303498(tnr)
*999  $z8900111605$anorart:8900111605
^