*0011601720 *008930105s1992 xx# 000 0 nob *019 $bk *08230$a616.3 *100 $aBerstad, Arnold$_36549700 *245 $aMagesår$ben bakteriell infeksjon? *300 $aS. 208-211 : ill. *773 $tNaturen$gÅrg. 116, nr 5 (1992)$x0028-0887$w(NO-LaBS)533618(tnr) *999 $z9300149348$anorart:9300149348 ^