@misc{indiciaefd89e96a81d4, title = {Comparing in-patient classification systems: a problem of non-nested regression models.}, author = {A R Willan and W Ross and T A Mackenzie}, year = {1992}, doi = {10.1002/sim.4780111006}, url = {https://pubmed.ncbi.nlm.nih.gov/1518993/}, note = {Source identifier: 1518993} }