TY - BOOK AU - Klem,Margaret Coyne TI - Prepayment medical care organizations T2 - [United States] Social security board. Bureau of research and statistics. Bureau memorandum AV - HD7123 .A35 no. 55a U1 - 614.2 PY - 1944/// CY - Washington, D.C. PB - Federal security agency, Social security board, Bureau of research and statistics KW - Medical economics KW - Societies, etc KW - Health insurance KW - United States KW - Directories KW - Hospitalization insurance ER -