共 11 条
[1]
ALRECK PL, 1995, SURVEY RES HDB, P35
[2]
Dillman D.A., 2011, Mail and internet surveys: The tailored design method
[3]
Kohn LT., 1999, ERR IS HUMAN BUILDIN
[4]
KOSKI RJ, 1999, ASHP MID CLIN M ORL
[9]
*SMG MARK GROUP, 2000, SMG ABR HOSP DAT
[10]
*US BUR CENS, 1996, STAT ABSTR US, P1937