共 30 条
- [3] Ali M, 2001, J HEALTH POPUL NUTR, V19, P100
- [4] [Anonymous], 2013, Regression Analysis of Count Data
- [5] [Anonymous], 2014, R LANG ENV STAT COMP
- [10] Cameron A.Colin., 1986, Journal of Applied Econometrics, V1, P29, DOI DOI 10.1002/JAE.3950010104