TY  - RPRT
TI  - [Multiple pregnancy. An increasing obstetric and pediatric problem].
AU  - B Lindberg
AU  - I Kjellmer
AU  - M Wennergren
AU  - H Rydhström
PY  - 1994
UR  - https://pubmed.ncbi.nlm.nih.gov/8139345/
ID  - 8139345
ER  -