TY  - RPRT
TI  - Programmed learning in medical instruction.
AU  - M Balson
PY  - 1967
DO  - 10.5694/j.1326-5377.1967.tb97690.x
UR  - https://pubmed.ncbi.nlm.nih.gov/6029787/
ID  - 6029787
ER  -