TY  - RPRT
TI  - The fragility of an altered proportion: a simple method for explaining standard errors.
AU  - A R Feinstein
PY  - 1987
DO  - 10.1016/0021-9681(87)90152-4
UR  - https://pubmed.ncbi.nlm.nih.gov/3818873/
ID  - 3818873
ER  -