TY  - RPRT
TI  - Letter: Standardised E.S.R.
AU  - J W Paulley
PY  - 1976
DO  - 10.1016/s0140-6736(76)92871-3
UR  - https://pubmed.ncbi.nlm.nih.gov/59208/
ID  - 59208
ER  -