TY  - RPRT
TI  - [Prolonged pregnancy and placental dysfunction].
AU  - A Bolte
AU  - K D Bachmann
AU  - G Strothmann
PY  - 1971
DO  - 10.1007/bf00682913
UR  - https://pubmed.ncbi.nlm.nih.gov/5108871/
ID  - 5108871
ER  -