00381nam a22001217a 4500003000400000082001800004100001900022245012900041260004400170300000700214650001900221653001900240SGT  a617.632bT20B  aBhardwaj, Amit  aTo determine and correlate the Chronic Periodontitis status and Blood groups in two major ethnic groups of Indian population  aGurugram, HaryanabSGT Universityc2020  a70  aPeriodontology  aPeriodontology