TY  - GEN
AU  - SEIN,M
TI  - Contraceptive technique
SN  - 0140-6736
PY  - 2003///0501
KW  - Contraception
KW  - Contraceptive Agents
KW  - Humans
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1016/s0140-6736(53)90409-7
ER  -