Prepayment medical care organizations
[by] Margaret C. Klem.
- 2d ed.
- Washington, D.C., Federal security agency, Social security board, Bureau of research and statistics, 1944.
- x, 130 p. incl. tables. 23 cm.
- [United States] Social security board. Bureau of research and statistics. Bureau memorandum no. 55 .
ss 44000057
Medical economics--Societies, etc. Health insurance--United States. Health insurance--Directories. Hospitalization insurance--United States--Directories.