@misc{indiciae7963223df0ce, title = {Querying medical databases in an environment offering logical data independence.}, author = {P di Felice}, year = {1989}, doi = {10.1016/0169-2607(89)90155-7}, url = {https://pubmed.ncbi.nlm.nih.gov/2702817/}, note = {Source identifier: 2702817} }