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National Health and Nutrition Examination Survey
See https://wwwn.cdc.gov/Nchs/Data/Nhanes/Public/2021/DataFiles/DEMO_L.htm#DMDHHSIZ for a complete description.
እንዲሁም ይሄን ኤፒአይ በመጠቀም ይህን መዝገብ መድረስ ይችላሉ። (see የኤፒአይ ሰነዶችን ተመልከት)