TY  - RPRT
TI  - Birthweights in consecutive pregnancies.
AU  - W Z Billewicz
AU  - A M Thomson
PY  - 1973
DO  - 10.1111/j.1471-0528.1973.tb15969.x
UR  - https://pubmed.ncbi.nlm.nih.gov/4720523/
ID  - 4720523
ER  -