TY  - RPRT
TI  - [How did the maternal mortality in the state of Hamburg decrease from 1973-1977? (author's transl)].
AU  - H Dietel
AU  - G Keding
PY  - 1980
DO  - 10.1055/s-2008-1037364
UR  - https://pubmed.ncbi.nlm.nih.gov/7409412/
ID  - 7409412
ER  -