@misc{indiciaed02933ce6842, title = {Prognostic assessment from studies with non-randomized treatment assignment.}, author = {L A Kiemeney and A L Verbeek and J C van Houwelingen}, year = {1994}, doi = {10.1016/0895-4356(94)90005-1}, url = {https://pubmed.ncbi.nlm.nih.gov/8138834/}, note = {Source identifier: 8138834} }