@misc{indiciaee0be7117c2b2, title = {PPOs: the employer perspective.}, author = {T Rice and J Gabel and G de Lissovoy}, year = {1989}, doi = {10.1215/03616878-14-2-367}, url = {https://pubmed.ncbi.nlm.nih.gov/2738353/}, note = {Source identifier: 2738353} }