000 00310nam a2200133Ia 4500
008 200511s9999 xx 000 0 und d
082 _a617.632
100 _aHALL
245 0 _aCritical Decisions in Periodontology
250 _a4
260 _bBC DECKEC INC
_c2008
300 _eNO
650 _aPeriodontology
999 _c42317
_d42317