TY  - RPRT
TI  - Intra uterine contraception.
AU  - N C Sengupta
AU  - A D Choudhury
AU  - S R Choudhury
PY  - 1966
UR  - https://pubmed.ncbi.nlm.nih.gov/5977005/
ID  - 5977005
ER  -