000 00265nam a2200121Ia 4500
008 200511s9999 xx 000 0 und d
082 _a617.6
100 _aSTOCKDALE
245 0 _aEndodotics Surgery
260 _bQB
_c1992
300 _eNO
650 _aConservative
999 _c42173
_d42173