00340nam a2200085   4500082001400000084002500014100002100039245012600060260006800186  a660.6 GOP  2Colon Classification  aGopalakrishnan P  aA Study on the prevalence and causative risk factors of dental flurosis among the population of Kerala/cP Gopalakrishnan  aGovt. Medical College, Alappuzha;bUniversity of Kerala:c2008.