TY  - RPRT
TI  - Long-term intracervical contraception with a levonorgestrel device.
AU  - S El Mahgoub
PY  - 1982
DO  - 10.1016/0010-7824(82)90093-2
UR  - https://pubmed.ncbi.nlm.nih.gov/6809421/
ID  - 6809421
ER  -