00269nam a2200109Ia 4500008004100000082002400041100002000065245001800085250000900103260003900112300000800151240913s9999||||xx |||||||||||||| ||und||  aGS570.151 95  KRI/B  aP Rama Krishnan 0aBiostatistics  aNULL  bSaras PublicationaNagercoilc2005  a383