TY  - RPRT
TI  - Four years of problem-based learning: a student's perspective.
AU  - G von Doebeln
PY  - 1996
DO  - 10.1136/pgmj.72.844.95
UR  - https://pubmed.ncbi.nlm.nih.gov/8871459/
ID  - 8871459
ER  -