TY  - RPRT
TI  - Selective termination down to a singleton pregnancy.
AU  - R J Lilford
PY  - 1992
DO  - 10.1046/j.1469-0705.1992.02020076-2.x
UR  - https://pubmed.ncbi.nlm.nih.gov/12796980/
ID  - 12796980
ER  -