TY - GEN AU - Pollock,M TI - A Copper 7 IUCD with no copper SN - 0007-1447 PY - 1979///1024 KW - Female KW - Humans KW - Intrauterine Devices, Copper KW - Pregnancy KW - Time Factors N1 - Publication Type: Letter UR - https://doi.org/10.1136/bmj.1.6177.1564 ER -