1. Starr Paul
,
The Social Transformation of American Medicine
(
New York
:
Basic Books, Inc.
,
1982
),
381
.
2. InterStudy, “Operational HMOs: 1970-1979”
(
Excelsior, Minn.
:
1980
).
3. Lewis Kathleen A.
,
“Private Sector Investment in HMOs, 1974-1980,”
(
Excelsior, Minn.
:
InterStudy
,
1981
).
4. “HMO Growth 1973-1978,” unpublished
(
InterStudy
,
1978
).