TY  - RPRT
TI  - Educational epidemiology.
AU  - G Michael Harper
AU  - Bruce Leff
AU  - Patricia A Thomas
PY  - 2004
DO  - 10.1001/jama.292.24.2970-a
UR  - https://pubmed.ncbi.nlm.nih.gov/15613652/
ID  - 15613652
ER  -