共 20 条
[1]
Becker MH., 1974, HLTH ED MONOGR, V2
[2]
*CTR DIS CONTR CT, 1987, 1986 ANN REP FY
[4]
GOLDSMITH MF, 1988, JAMA-J AM MED ASSOC, V250, P757
[6]
Hayes CD, 1987, RISKING FUTURE ADOLE, V1
[8]
HELGERSON SD, 1988, PEDIATRICS, V81, P350