R. Guell
发表
R. Guell,
1997
.
D. G. Richards,
R. Guell,
D. Richards,
1998
.
R. Guell,
M. Fischbaum,
Marvin Fischbaum,
1997
.
R. Guell,
1997,
Health economics.
Bruce H. Kobayashi,
D. Lichtman,
A. Schwartz,
2003
.
Debra A. Worley,
Joshua B. Powers,
Richard Fitch,
2008
.
R. Guell,
1973
.
R. Guell,
D. Richards,
1998
.
R. Guell,
Marvin Fischbaum,
1995,
The Milbank quarterly.
P. Burkett,
R. Guell,
1994
.