共 9 条
[2]
COCHRAN WG, 1976, SAMPLING TECHNIQUE, P141
[3]
INFLUENCE OF PARENTAL KNOWLEDGE AND OPINIONS ON 12-MONTH DIPHTHERIA, TETANUS, AND PERTUSSIS VACCINATION RATES
[J].
AMERICAN JOURNAL OF DISEASES OF CHILDREN,
1988, 142 (03)
:283-286
[4]
*NC DEP HUM RES DI, 1980, N CAR IMM SURV 2 YEA
[6]
REMINGTON RD, 1985, STATISTICS APPLICATI
[7]
Schlesselman J.J., 1982, CASE CONTROL STUDIES, VVolume 2
[8]
*US DEP HLTH HUM S, 1987, SUMM NOT DIS US, V36, P55
[9]
1987, JAMA-J AM MED ASSOC, V257, P2013