TY  - RPRT
TI  - Calculating correlation coefficients with repeated observations: Part 1--Correlation within subjects.
AU  - J M Bland
AU  - D G Altman
PY  - 1995
DO  - 10.1136/bmj.310.6977.446
UR  - https://pubmed.ncbi.nlm.nih.gov/7873953/
ID  - 7873953
ER  -