TY  - RPRT
TI  - When to remove the I.U.D.
AU  - M Pollock
PY  - 1971
DO  - 10.1016/s0140-6736(71)90655-6
UR  - https://pubmed.ncbi.nlm.nih.gov/4143579/
ID  - 4143579
ER  -