TY  - RPRT
TI  - Major malformations and multiple births.
AU  - D B Pitt
PY  - 1963
DO  - 10.1111/j.1479-828x.1963.tb00212.x
UR  - https://pubmed.ncbi.nlm.nih.gov/13943848/
ID  - 13943848
ER  -