共 41 条
[1]
[Anonymous], 2004, INT CLASS DIS REL HL
[2]
[Anonymous], SHOV 2 IMP SUBST AB
[3]
[Anonymous], EUROPEAN J PUBLIC HL
[4]
[Anonymous], 5601 IZA I STUD LAB
[5]
Use of the Internet and e-mail for health care information - Results from a national survey
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
2003, 289 (18)
:2400-2406
[7]
Choi H., 2009, Predicting the Present with Google Trends
[8]
Cotti C, 2011, BE J ECON ANAL POLI, V11