R. Helms
发表
R. Sandhu,
Murat Kantarcioglu,
B. Thuraisingham,
2022
.
R. Helms,
1993
.
R. Helms,
1992,
Diabetes Care.
R. Helms,
2006,
PharmacoEconomics.
R. Helms,
1981
.
R. Helms,
2000
.
R. Helms,
1993
.
R. Helms,
1996
.
J. Newhouse,
W. Roper,
U. Reinhardt,
1999,
Health affairs.
R. Helms,
1980,
Bulletin of the New York Academy of Medicine.
R. Helms,
1996,
PharmacoEconomics.
R. Helms,
2004,
Managed care.