TY  - RPRT
TI  - Effort perception in children.
AU  - K L Lamb
AU  - R G Eston
PY  - 1997
DO  - 10.2165/00007256-199723030-00001
UR  - https://pubmed.ncbi.nlm.nih.gov/9108634/
ID  - 9108634
ER  -