@misc{indiciaeb4130f8987e5, title = {Clinical biostatistics. XLIX. The basic data structures used in quantitative indexes.}, author = {A R Feinstein}, year = {1979}, doi = {10.1002/cpt1979264525}, url = {https://pubmed.ncbi.nlm.nih.gov/487700/}, note = {Source identifier: 487700} }