@article{doi:10.1001/jama.281.5.432,
author = {Baker LC},
title = {ASsociation of managed care market share and health expenditures for fee-for-service medicare patients},
journal = {JAMA},
volume = {281},
number = {5},
pages = {432-437},
year = {1999},
doi = {10.1001/jama.281.5.432},
URL = { + http://dx.doi.org/10.1001/jama.281.5.432},
eprint = {/data/Journals/JAMA/4597/JOC80770.pdf}
}