TY  - RPRT
TI  - Gray-scale sonography and the IUD.
AU  - J Van Eyck
AU  - P Defoort
AU  - M Thiery
PY  - 1976
DO  - 10.1016/s0010-7824(76)80034-0
UR  - https://pubmed.ncbi.nlm.nih.gov/1253600/
ID  - 1253600
ER  -