共 18 条
[1]
AMARO H, 1990, CONTRACEPTION PREGNA, P203
[2]
EDWARDS AL, 1972, EXPT DESIGN PSYCHOL
[3]
ELSTER AB, 1990, PEDIATRICS, V85, P1044
[4]
Frankenburg W. K., 1973, DENVER DEV SCREENING
[5]
FRINGS CS, 1989, CLIN CHEM, V35, P891
[8]
Hawks R, 1986, NIDA RES MONOGRAPH
[9]
Hofferth S. L., 1987, RISKING FUTURE ADOLE, P174
[10]
Johnston LD, 1988, ILLICIT DRUG USE SMO