TY  - RPRT
TI  - Difference between the 'old' NCHS reference as 'descriptive' and the new WHO reference as 'prospective'.
AU  - John Waterlow
PY  - 2006
DO  - 10.1079/phn2006962
UR  - https://pubmed.ncbi.nlm.nih.gov/16923302/
ID  - 16923302
ER  -