TY  - RPRT
TI  - Clinical biostatistics. XLIX. The basic data structures used in quantitative indexes.
AU  - A R Feinstein
PY  - 1979
DO  - 10.1002/cpt1979264525
UR  - https://pubmed.ncbi.nlm.nih.gov/487700/
ID  - 487700
ER  -