共 13 条
[1]
*AM AC PED COMM FE, 1992, MATERNAL FETAL MED G, V3
[2]
BRAVEMAN P, 1995, PEDIATRICS, V96, P716
[3]
Cochran W.G., 2007, SAMPLING TECHNIQUES
[5]
*HCIA, 1996, LENGTH STAY DIAGN, P448
[7]
LEE ES, 1989, ANAL COMPLEX DAT
[9]
*NAT CTR HLTH STAT, 1989, NAT CTR HLTH STAT PU
[10]
Rao JNK., 1989, Analysis of complex surveys, P89