Severity of illness: concepts and measurements.
Stein RE, Gortmaker SL, Perrin EC, Perrin JM, Pless IB, Walker DK, Weitzman M.
Stein RE, et al. Among authors: perrin ec, perrin jm.
Lancet. 1987 Dec 26;2(8574):1506-9. doi: 10.1016/s0140-6736(87)92633-x.
Lancet. 1987.
PMID: 2892059
Review.
No abstract available.