00342nam a2200145Ia 4500003000400000005001700004008004100021020002200062100001600084245001800100250000600118260004100124300000800165650002300173OSt20251004104951.0240816s9999 xx 000 0 und d a9789374734674  aJYOTI KUMAR 0aBIOSTATISTICS a2 aDelhibAITBS Publishers India c2023 a298 aCOMMUNITY MEDICINE