共 35 条
[1]
*AM CANC SOC, 1998, RES GUID YOUTH TOB C
[2]
[Anonymous], 1998, MMWR Recomm Rep, V47, P1
[3]
[Anonymous], 1994, Morbidity and Mortality Weekly Report, V43, P1
[4]
[Anonymous], 1996, SUDAAN SOFTWARE STAT
[5]
[Anonymous], 1998, NIH PUBL
[6]
ARY DV, 1989, NCI MONOGRAPHS, V8, P49
[8]
*CDCP, 1999, 1 WORKGR YOUTH TOB U
[9]
Centers for Disease Control and Prevention (CDC), 1998, MMWR Morb Mortal Wkly Rep, V47, P229