R Sheldon
发表
M Gent,
R Goeree,
B. O'brien,
2001,
Circulation.
R. Sheldon,
M L Koshman,
M. Rose,
2000,
Journal of clinical epidemiology.
R. Sheldon,
M L Koshman,
M. Rose,
1999,
Journal of clinical epidemiology.