00423nam 2223436 450000100060000000300230000600500090002900800410003808200120007902000180009110000160010926000240012525000060014924501240015523436StarLibrary Marc Built20180430201711 ||||| |||||||||||amh  a617.632 a1-85097-009-2 aA. m. Grace bquintessence c1989 a2 aPERIODONTAL CONTROL bAn effective system for diagnosis, selection, control and treatment planning in general practice