National HMO census of prepaid plans, June 30, 1980.
Series: DHHS publication ;; no. (PHS) 80-50159
Publisher: U.S. Dept. of Health and Human Services, Public Health Service, Division of Program Promotion; For Sale by the Supt. of Docs., U.S. G.P.O.
Published: 1980
Place of publication: Rockville, Md; Washington, D.C
Language: eng
Number of pages: 42