TY - GEN AU - Freshnock,L J AU - Jensen,L E TI - Contempo '81. The changing structure of medical group practice in the United States, 1969 to 1980 SN - 0098-7484 PY - 1981///0723 KW - Group Practice KW - economics KW - Group Practice, Prepaid KW - trends KW - United States N1 - Publication Type: Journal Article ER -