TY  - RPRT
TI  - Retrograde cervical perforation by the copper-T device.
AU  - K G Nygren
AU  - E D Johnasson
PY  - 1974
DO  - 10.3109/00016347409157758
UR  - https://pubmed.ncbi.nlm.nih.gov/4440469/
ID  - 4440469
ER  -