TY  - RPRT
TI  - Effective audiovisual presentation.
AU  - S S Sagel
AU  - R G Ramsey
PY  - 1991
DO  - 10.2214/ajr.156.1.1701610
UR  - https://pubmed.ncbi.nlm.nih.gov/1701610/
ID  - 1701610
ER  -