共 6 条
- [1] CDC National Center for Health Statistics, INV NONR BIAS SAMPL
- [2] CDC National Center for Health Statistics, NHANES RESP RAT POP
- [3] Mazurek Gerald H., 2010, Morbidity and Mortality Weekly Report, V59, P1
- [4] Ingram Deborah D, 2018, Vital Health Stat 2, P1
- [6] Parker Jennifer D, 2017, Vital Health Stat 2, P1