共 18 条
[11]
REMINGTON PL, 1985, JAMA-J AM MED ASSOC, V253, P2975
[12]
*SAS I INC, 1985, SAS VERS 5
[13]
SHAH B, 1987, RTILOGIT PROCEDURE L
[14]
*US BUR CENS, 1985, CURR POP REP P60, V147
[15]
*US CTR DIS CONTR, 1987, SMOK TOB HLTH FACT B
[16]
US Department of Health and Human Services, 1985, REP SECR TASK FORC B
[17]
*USDHEW, 1979, PHS7950066 PUBL
[18]
WATSON HR, 1977, Patent No. 4060091