00378nam a2200145Ia 4500008004100000020001900041041000800060082001600068100002100084245005000105250000800155260004100163300000900204650001900213230721s1998    xx            000 0 und d  a9780867153408   aeng  a617.632,BAR  aBARTOLD P MARK.   aBIOLOGY OF THE PERIODONTAL CONNECTIUE TISSUES  a1ST  bLONDONQUINTESSENCE PUBLICATIONc1998  a278   aPeriodontology