共 49 条
[1]
BECERRA JE, 1991, PEDIATRICS, V88, P553
[2]
Blushan V., 1993, PEDIATRICS, V91, P1094
[3]
BOWDEN JD, 1990, ESTIMATING COSTS PRO
[6]
CHOLLET DJ, 1992, INFANT HLTH AM EVERY, P3
[7]
CHU RC, 1988, 1985 INDIRECT COSTS
[8]
CORMAN H, 1994, EFFECTS LOW BIRTH WE
[9]
CORMAN H, 1993, 4409 NAT BUR EC RES
[10]
CROWE TK, 1988, J DEV BEHAV PEDIATR, V9, P189

