17 states changing payment for health care. Atkinson BM. W V Med J. 1989 Jun;85(6):248. PMID: 2735014
Who pays for health?. [No authors listed] Nature. 1987 Dec 17-23;330(6149):590. doi: 10.1038/330590a0. PMID: 3683575
A better way to measure health care costs. Ancowitz A. Am Med News. 1978 Sep 22;21(37):suppl 7-8. PMID: 11125915