共 15 条
[1]
BELL RM, 1990, N2933CHF RAND CORP
[2]
COHEN JV, 1977, STATISTICAL POWER AN
[3]
DENT CW, 1990, DEC S STAT METH EV I
[5]
ELLICKSON PL, 1988, R3754CHF RAND CORP
[6]
Jessor RA, 1984, BEHAV HLTH HDB HLTH, P69
[9]
RICHARDSON JL, 1989, PEDIATRICS, V84, P556