TY  - RPRT
TI  - Specificity and variability of practice.
AU  - C H Shea
AU  - R M Kohl
PY  - 1990
DO  - 10.1080/02701367.1990.10608671
UR  - https://pubmed.ncbi.nlm.nih.gov/2094928/
ID  - 2094928
ER  -