00326pam a2200121 a 4500020002400000041000800024082001700032100001800049245004600067260005500113300001700168653001900185 a978-93-5025-367-0c aeng a617.632bSHA aShalu Bathla. aPeriodontics RevisitedhTextual Documents aDelhibJaypee Brothers Medical Publishers (P) Ltd. b27*21;c544. aPeriodontology