TY - GEN AU - HALL,H H AU - STONE,M L AU - SEDLIS,A AU - CHABON,I TI - THE INTRAUTERINE RING FOR CONCEPTION CONTROL SN - 0015-0282 PY - 1996///1201 KW - Contraceptive Devices KW - Fertilization KW - Humans N1 - Publication Type: Journal Article UR - https://doi.org/10.1016/s0015-0282(16)35406-1 ER -