TY  - RPRT
TI  - Proxies and other external raters: methodological considerations.
AU  - A Lynn Snow
AU  - Karon F Cook
AU  - Pay-Shin Lin
AU  - Robert O Morgan
AU  - Jay Magaziner
PY  - 2005
DO  - 10.1111/j.1475-6773.2005.00447.x
UR  - https://pubmed.ncbi.nlm.nih.gov/16179002/
ID  - 16179002
ER  -