TY  - RPRT
TI  - Gross Motor Function Classification System: impact and utility.
AU  - Christopher Morris
AU  - Doreen Bartlett
PY  - 2004
DO  - 10.1017/s0012162204000118
UR  - https://pubmed.ncbi.nlm.nih.gov/14974650/
ID  - 14974650
ER  -