共 21 条
[1]
Aalto A, 1999, RES REPORTS, P101
[2]
Aalto A.M., 1997, SUOM LAAKARILEHT, V52, P1065
[7]
Hays R D, 1993, Health Econ, V2, P217, DOI 10.1002/hec.4730020305