TY  - RPRT
TI  - A simple height-specific and rate-specific step test for children.
AU  - K Francis
AU  - R Feinstein
PY  - 1991
DO  - 10.1097/00007611-199102000-00005
UR  - https://pubmed.ncbi.nlm.nih.gov/1990447/
ID  - 1990447
ER  -