TY  - RPRT
TI  - Commentary: ethnic differences in gestational age exist, but are they 'normal'?
AU  - David A Savitz
PY  - 2004
DO  - 10.1093/ije/dyh041
UR  - https://pubmed.ncbi.nlm.nih.gov/15075155/
ID  - 15075155
ER  -