@article{Nelson1998, author = {Nelson, L.M. and Bloch, D.A. and Longsteth, W.T. and Shi, H.}, title= {Recursive partitioning for the identification of disease risk subgroups: a case-control study of subarachnoid hemorrage}, year = {1998}, doi = {10.1016/S0895-4356(97)00268-0}, journal = {Journal of Clinical Epidemiology}, volume = {51}, number = {3}, pages = {199--209}, }