TY  - RPRT
TI  - Euphoria, missteps, and doubts.
AU  - D S Greenberg
PY  - 1993
DO  - 10.1016/0140-6736(93)92887-y
UR  - https://pubmed.ncbi.nlm.nih.gov/8105271/
ID  - 8105271
ER  -