TY  - RPRT
TI  - A posterior composite teaching programme for the undergraduate.
AU  - H O Heymann
PY  - 1989
DO  - 10.1016/0300-5712(89)90163-2
UR  - https://pubmed.ncbi.nlm.nih.gov/2732377/
ID  - 2732377
ER  -