TY  - RPRT
TI  - A lesson from the third year.
AU  - Eric Helms
PY  - 2004
DO  - 10.7326/0003-4819-141-9-200411020-00021
UR  - https://pubmed.ncbi.nlm.nih.gov/15520436/
ID  - 15520436
ER  -