TY  - RPRT
TI  - [Obstetrical problems in breech presentation (proceedings)].
AU  - M Müller
AU  - F W Dittmar
AU  - U M Boquoi
AU  - R Lau
PY  - 1977
DO  - 10.1007/bf00679540
UR  - https://pubmed.ncbi.nlm.nih.gov/579796/
ID  - 579796
ER  -